All 939 of our guides on one page, grouped by topic: how to identify, choose, install and look after transmissions, engines, superchargers, outboards, trolling motors and the parts around them. Each guide links to the parts it covers.
Trolling motors and batteries (39)
- 12V vs 24V vs 36V Trolling Motor: Which Voltage?
- 24V vs 36V Trolling Motor: Can You Run 36V on 24V?
- Boat Battery Keeps Dying? Causes and How to Fix It
- Boat Battery Switch: 1, 2, Both and Off Explained, With Wiring
- Bow Mount vs Transom Mount Trolling Motor: Which to Choose
- Brushless vs Brushed Trolling Motor: Pros, Cons and Value
- Can You Use a Freshwater Trolling Motor in Saltwater?
- Deep Cycle vs Starting Battery: Boats, Trolling and Winches
- Foot Pedal vs Remote Trolling Motor: Which Control?
- How Deep Should a Trolling Motor Be in the Water?
- How Fast Does a Trolling Motor Go?
- How Long Do Lithium Batteries Last? Marine LiFePO4 Guide
- How Long Do Trolling Motors Last? Years and Upkeep
- How Long Will a Trolling Motor Battery Last?
- How Many Amp Hours Do I Need for a Trolling Motor?
- How Much Does a Trolling Motor Cost? Prices by Type
- How to Charge Trolling Motor Batteries (12V, 24V and 36V)
- How to Install a Trolling Motor: Bow-Mount Steps
- How to Wire a 24 Volt Trolling Motor (and 36 Volt)
- LiFePO4 vs Lithium-Ion: Safety, Life and Charging
- Lithium Batteries in Cold Weather: Charging Below Freezing
- Lithium Battery Charger: Charging LiFePO4 Boat Batteries
- Lithium vs Lead-Acid Trolling Motor Battery: Worth It?
- Marine Battery vs Car Battery: Differences and Uses
- Minn Kota Fortrex vs Maxxum: Which Cable-Steer Motor?
- Minn Kota Fortrex vs Terrova: Cable Steer or GPS?
- Minn Kota Maxxum vs PowerDrive: Cable vs Electric Steer
- Minn Kota PowerDrive vs Terrova: Which Electric-Steer Motor?
- Minn Kota Riptide vs Freshwater: What Is the Difference?
- Minn Kota Terrova 55 vs 80: Thrust, Voltage and Which to Buy
- Minn Kota Terrova vs Ultrex vs Ulterra
- Trolling Motor Batteries: 12V, 24V, 36V and Lithium
- Trolling Motor for a Bass Boat: Thrust, Shaft and Models
- Trolling Motor for a Center Console: Shaft, Thrust, Salt
- Trolling Motor Not Working? Troubleshooting and Repair
- Trolling Motor Prop: Replacement, Prop Nut, Pin and Line Wrap
- Trolling Motor Wiring: 12V Step by Step, Breaker and Wire Size
- What Is Spot-Lock on a Trolling Motor? How It Works
- What Size Trolling Motor Do I Need? Thrust, Voltage and Shaft Length
Outboards, propellers and boats (59)
- 20 HP Outboard Comparison: Suzuki vs Mercury vs Tohatsu
- 20 HP vs 25 HP Outboard (and 15 vs 20): Which Size?
- 3 Blade vs 4 Blade Prop: Which Is Right for Your Boat?
- 4 Stroke vs 2 Stroke Outboard: Key Differences Explained
- 9.9 HP Outboard Comparison: Suzuki vs Mercury vs Tohatsu
- 9.9 vs 15 HP Outboard: Weight, Speed and Limits
- Boat Porpoising: Causes and How to Stop It
- Boat Propeller Pitch and Sizing Explained
- Boat Won’t Get on Plane? Causes and Fixes
- EFI vs Carbureted Outboard: Which Is Better?
- Electric Start vs Pull Start Outboard, and Tiller vs Remote
- Ethanol in Boat Fuel: Problems, E10 vs E15 and Stabilizer
- How Many Hours Is a Lot for an Outboard Motor?
- How Much Does an Outboard Motor Cost? Prices by HP
- How to Change Lower Unit Oil on an Outboard
- How to Change Oil in an Outboard Motor and How Often
- How to Flush an Outboard Motor: Muffs, Flush Port and More
- How to Remove an Inboard Prop (With or Without a Puller)
- How to Tell If a Prop Is Bent (and the Prop Shaft)
- How to Winterize a Boat and Outboard Motor
- Inboard vs Outboard: Pros, Cons and Which to Choose
- Mercury Outboard Model Codes Explained (ELH, XL, CT, PK)
- Milky Lower Unit Oil: What It Means and What to Do
- Outboard Break-In Procedure for New Four-Stroke Motors
- Outboard for a Sailboat: Shaft Length, HP and Models
- Outboard Fuel Filter: Water Separators, Symptoms and Replacement
- Outboard Fuel Line: Connector Types, Hose Size and Replacement
- Outboard Ignition Switch: Problems, Testing and Replacement
- Outboard Kill Switch: How It Works, Rules and Testing
- Outboard Loses Power at Full Throttle: Causes and Fixes
- Outboard Motor for a Canoe: HP, Mounting and Models
- Outboard Motor Maintenance: Four-Stroke Checklist and Tips
- Outboard Not Peeing? Tell-Tale Causes and Fixes
- Outboard Overheating: Causes, Pumping Water but Still Hot
- Outboard Primer Bulb Not Working or Going Soft: Fixes
- Outboard Runs Rough at Idle or Low Speed: Causes and Fixes
- Outboard Shaft Length Chart: Short, Long or Extra-Long?
- Outboard Spark Plugs: Reading, Fouling and Replacement
- Outboard Steering Cable: Stiff, Stuck or Frozen? How to Fix It
- Outboard Tachometer: Settings, Troubleshooting and Propping
- Outboard Thermostat: Stuck Open or Closed Symptoms and Testing
- Outboard Trim Not Working: How to Diagnose It
- Outboard Trim Sender: Trim Gauge Not Working and How to Adjust
- Outboard Water Pump Impeller: Signs, Overheating and Replacement
- Outboard Won’t Go Into Gear: Causes and Shift Cable Fixes
- Outboard Won’t Idle or Stay Running: Causes and Fixes
- Outboard Won’t Start? Troubleshooting Small Outboards
- Prop Slip: Formula, Calculator Example and What’s Normal
- Spun Prop Hub: Symptoms, How to Check It and Repair Options
- Stainless Steel vs Aluminum Prop (Plus Bronze and Nibral)
- Suzuki vs Mercury Outboards: Prices and Differences
- Suzuki vs Tohatsu Outboards: Prices and Differences
- Tiller vs Remote Outboard: Differences and Conversion
- Tilt and Trim Fluid: Type, How to Check It and Leaks
- Tohatsu 9.8 vs 9.9: Which Small Outboard to Buy?
- Tohatsu vs Mercury Outboards: Prices, Range and Support
- What Size Outboard Do I Need for My Boat?
- Who Makes Tohatsu Outboards? Where They Are Made and Reviews
- Zinc vs Aluminum Anodes for Outboards: Which Water Uses Which
Transmissions and torque converters (128)
- 10L80 Problems: Harsh Shifts, Shudder and Fixes
- 10R80 Problems: Harsh Shifts, Updates and Common Failures
- 10R80 vs 10L80: Ford and GM Ten-Speed Differences
- 46RE vs 47RE: Differences, Gear Ratios and Which You Have
- 47RE Problems: Shifting, Lockup and Overdrive Issues
- 47RE vs 48RE: Dodge Ram Cummins Transmissions Compared
- 48RE Problems: TTVA, Governor Pressure and Overdrive
- 48RE vs 68RFE: Cummins Transmissions Compared
- 4L60E Problems: Common Failures, Symptoms and Diagnosis
- 4L60E Rebuild or Replace? Repairs, Upgrades and Cost Factors
- 4L60E Shift Solenoids: Chart, Location and Symptoms
- 4L60E to 4L80E Swap: What Changes and What You Need
- 4L60E Transmission Fluid Capacity, Type and Level Check
- 4L60E Upgrades: Shift Kits, Stage 2 Builds and More
- 4L60E vs 4L65E vs 4L80E: Differences Explained
- 4L60E vs 4L70E (and 4L65E, 4L75E): What’s Different
- 4L80E Problems: Common Issues, Lockup and Symptoms
- 4L80E vs 4L85E: What’s Different and Which to Choose
- 4L80E vs TH400: Differences Between GM’s Heavy-Duty Automatics
- 4R100 Problems: Shifting, Reverse and Lockup Issues
- 4R70W Problems: Slipping, Shifting and Lockup Issues
- 4R70W vs 4R75W: Differences, Swaps and Which You Have
- 545RFE Problems: Limp Mode, Valve Body and Overdrive
- 545RFE vs 68RFE: Light-Duty vs Heavy-Duty Ram Automatics
- 5R110W Problems: Torque Converter, Reverse and Heat
- 5R110W vs 6R140: Super Duty TorqShift Five vs Six-Speed
- 62TE Problems: Compounder, Solenoid Pack and Shifting
- 66RFE vs 68RFE: Gas vs Cummins Ram Heavy-Duty Six-Speeds
- 68RFE Problems: Overheating, Limp Mode, Shudder and Fixes
- 68RFE vs Aisin: Ram Heavy Duty Transmissions Compared
- 68RFE vs Allison 1000: Ram vs GM Heavy-Duty Automatics
- 6L80 Swap: What It Takes to Swap From a 4L60E
- 6L80 vs 4L80E: Gearing, Strength and Swaps Compared
- 6L80 vs 6L90: Differences, Gear Ratios and Swaps
- 6L80 vs 8L90: GM Six-Speed vs Eight-Speed Compared
- 6L80E Problems: Common Symptoms, Causes and Diagnosis
- 6L90 vs Allison 1000: GM Heavy-Duty Gas vs Diesel Automatics
- 6R140 Problems: Shifting, Shudder and Reliability
- 6R80 Problems: Lead Frame, Harsh Downshifts and Shudder
- 6R80 vs 10R80: Gear Ratios, Reliability and Swaps
- 6R80 vs 6L80: Ford and GM Six-Speeds Compared
- 6R80 vs 6R140: Ford Light-Duty vs Super Duty Six-Speeds
- 700R4 vs 4L60E: Differences, Identification and Swaps
- 8L90 Problems: Shudder, Harsh Shifts and Fixes
- 8L90 vs 10L80: GM Eight-Speed vs Ten-Speed Automatics
- Allison 1000 Problems: Shifting, Converter and Overheating
- Bad Flex Plate Symptoms: Knocking, Cracks and Starter Grind
- Bad Input or Output Speed Sensor Symptoms
- Bad TCM Symptoms: Transmission Control Module Problems
- Bad Torque Converter Symptoms (and What a Torque Converter Does)
- Bad Transmission Mount Symptoms: Clunks and Vibration
- Bad Transmission or Torque Converter? How to Tell
- Bad Transmission Pump Symptoms: Whine, Delay and Slipping
- Cummins Swap Transmission Options: 47RE, 48RE, 68RFE
- E4OD Problems: Electrical, Shifting and Reverse Issues
- E4OD vs 4R100: Ford Heavy-Duty Automatics Compared
- E4OD vs 4R70W: Ford Heavy-Duty vs Light-Duty Four-Speeds
- Engine or Transmission Problem? How to Tell the Difference
- Engine Stalling: Why a Car Stalls at Idle, Stopping or Driving
- How Does an Automatic Transmission Work?
- How Long Do Transmissions Last? Mileage, Signs and Care
- How Long Does a 10R80 Last? Miles, Issues and Upkeep
- How Long Does a 47RE Last? Cummins Transmission Life
- How Long Does a 48RE Last? How to Make It Last
- How Long Does a 4L60E Last? Miles, Weak Points and Rebuilds
- How Long Does a 4L65E Last? Is It a Good Transmission?
- How Long Does a 4L80E Last? Reliability and Miles
- How Long Does a 4R100 Last? Miles and Upkeep
- How Long Does a 5R110 Last? TorqShift Life
- How Long Does a 68RFE Last? Is It That Bad?
- How Long Does a 6L80 Last? Miles, Problems and Rebuilds
- How Long Does a 6L90 Last? Heavy-Duty Six-Speed Life
- How Long Does a 6R140 Last? Super Duty Transmission Life
- How Long Does a 6R80 Last? Is It a Good Transmission?
- How Long Does a Rebuilt Transmission Last?
- How Long Does a Torque Converter Last?
- How Long Does an 8L90 Last? Shudder, Fluid and Updates
- How Long Does an Allison 1000 Last? Miles and Service
- How Long Does It Take to Replace a Transmission or Engine?
- How Much Horsepower Can a 4L60E Handle? Stock vs Built
- How Much Horsepower Can a 4L80E Handle? Ratings and Builds
- How Much Horsepower Can a 6L80 Handle? Stock vs Built
- How Much Transmission Fluid Do I Need?
- How Often to Change Transmission Fluid: Intervals and Checks
- How to Change a Transmission Filter Step by Step
- How to Change Transmission Fluid (Drain and Fill)
- How to Check Transmission Fluid (With a Fluid Color Chart)
- How to Check Transmission Fluid Without a Dipstick
- How to Install a Transmission: Steps That Matter Most
- Limp Mode: What It Is, Causes and What to Do
- LS Swap Transmission Options: 4L60E, 4L80E, 6L80E and More
- Rebuilt vs Used Transmission: Is Rebuilt as Good as New?
- Shifter Stuck in Park: Causes and How to Release It
- Signs of a Bad Transmission and How to Tell for Sure
- Torque Converter Lockup: How It Works and Problems
- Torque Converter Replacement: What’s Involved and When
- Torque Converter Shudder: Causes, Symptoms and Fixes
- Tow/Haul Mode and Axle Ratios for Towing Explained
- Transmission Break-In: New or Rebuilt Transmission Procedure
- Transmission Control Module (TCM): Bad TCM Symptoms
- Transmission Cooler for Towing: Do You Need One?
- Transmission Cooler Lines Leaking: Symptoms and Fixes
- Transmission Delayed Engagement: Causes, Cold Delay and Fixes
- Transmission Fluid Color Chart: What Each Color Means
- Transmission Fluid Leak: Causes, Signs and Fixes
- Transmission Fluid Temperature: What Is Normal, What Is Too Hot
- Transmission Fluid Type Chart by Transmission Code
- Transmission Fluid Types: Dexron VI, Mercon LV and ATF+4 by Code
- Transmission Flush vs Change: Drain-and-Fill or Fluid Exchange?
- Transmission Line Pressure: Low Pressure Symptoms and Testing
- Transmission Noise: Whining, Grinding, Clunking and Humming
- Transmission Overheating: Symptoms, Causes and What to Do
- Transmission Pan Gasket Leak: Symptoms and Fixes
- Transmission Pan Magnet: What the Metal on It Means
- Transmission Range Sensor: Symptoms, Location and Adjustment
- Transmission Rebuild vs Replacement: What’s Involved
- Transmission Replacement Cost: Prices by Transmission Code
- Transmission Shifting Hard: Causes When Cold, 1-2 or Slowing
- Transmission Slipping: Signs, Causes and Low-Fluid Warning Signs
- Transmission Solenoid Pack: Symptoms, Codes and Replacement
- Transmission Solenoid Symptoms, Codes and Causes
- Transmission Valve Body Problems: Symptoms and Causes
- Transmission Won’t Go Into Reverse: Causes and Fixes
- Transmission Won’t Shift or Go Into Gear: Causes and Fixes
- VVT Solenoid: Symptoms, Codes and How to Test It
- What Does a Torque Converter Do? How It Works
- What Is a Stall Converter? Torque Converter Stall Speed
- What Transmission Do I Have? GM, Ford and Ram Identification
Superchargers, intakes and performance (44)
- AWE Track vs Touring Exhaust: Sound, Drone and Price
- Axle-Back vs Cat-Back Exhaust: What’s the Difference?
- BC Racing BR vs Extreme Low Coilovers: Differences
- Car Heater Blowing Cold Air: Causes and Fixes
- Centrifugal Supercharger: How It Works vs Roots and Twin-Screw
- Clutch Break-In Procedure: How to Bed In a New Clutch
- Clutch Chatter: Causes When Engaging, in Reverse or When Hot
- Clutch Master Cylinder Symptoms: Sinking or Spongy Pedal
- Clutch Slipping: Symptoms, How to Check and Causes
- Coilovers vs Lowering Springs: Which Should You Choose?
- Coilovers vs Struts vs Shocks: What’s the Difference?
- Dual Mass Flywheel vs Single Mass: Pros, Cons and Symptoms
- Front Mount Intercooler vs Top Mount: Pros and Cons
- Headlight Condensation: Normal Fog vs a Leak and How to Fix It
- How Long Do Coilovers Last? Miles, Years and Rebuilds
- How Long Does a Clutch Last? Miles, Wear and Tips
- How Long Does a Supercharger Last? Wear and Upkeep
- How Long Does an Intercooler Last? Do Intercoolers Go Bad?
- How Much Does a Supercharger Cost? Kit Prices and Install
- How Much Horsepower Does a Supercharger Add?
- How to Adjust Headlights (Step by Step)
- Is a Supercharger Worth It? Pros, Cons and Real Costs
- LED vs Halogen Headlights: Brightness, Life and Legality
- Organic vs Ceramic Clutch: Which Disc Should You Use?
- Paxton Novi 1200 vs 1500 vs 2200: Which Head Unit?
- Projector vs Reflector Headlights: Which Is Better?
- Resonator vs Muffler: Differences, Sound and Drone
- Signs of a Bad Clutch and How Long a Clutch Lasts
- Stage 1 vs Stage 2 vs Stage 3 Clutch: Differences
- Supercharger Belt Slip: Symptoms, Tension and Fixes
- Supercharger Maintenance and Paxton Supercharger Oil
- Supercharger vs Turbo: Differences, Pros and Cons Explained
- Supercharger Whine: What Causes It and When to Worry
- Twin-Screw vs Roots Supercharger: Differences Explained
- What Are Coilovers? How They Work and How to Adjust Them
- What Does a Blow-Off Valve Do? BOV vs Bypass Valve
- What Does a Cold Air Intake Do? Pros, Cons and Gains
- What Does a Harmonic Balancer Do? Symptoms and Replacement
- What Does a Supercharger Do? How a Supercharger Works
- What Does a Wastegate Do? Turbo Boost Control Explained
- What Does an Intake Manifold Do? Types and Materials
- What Does an Intercooler Do? Air-to-Air vs Air-to-Water
- What Is E85? E85 vs Gasoline and Fuel System Upgrades
- What Is Turbo Lag and Why Does It Happen?
Platforms: Corvette, Camaro, Subaru, Civic, Evo and Ram (16)
- BRZ and GR86 Exhaust: Layout, Torque Dip and Cat-Back Upgrades
- C6 vs C7 Corvette: Engines, Reliability and Which to Buy
- Camaro Generations: 5th Gen vs 6th Gen Years and Engines
- Civic Si Exhaust: 10th and 11th Gen Cat-Back Options
- Civic Si Generations: 10th Gen vs 11th Gen Compared
- Civic Si vs Type R: Specs, Price and Daily Driving
- Corvette Generations: C5, C6 and C7 Years and Horsepower
- GR86 vs BRZ: Differences Between Toyota and Subaru’s Twins
- How Long Does a Subaru Engine Last? EJ, WRX and FA
- Mitsubishi Evo Generations: Evo VIII, IX and X in the US
- Ram Generations: 1500 and 2500/3500 Years Explained
- Subaru Head Gasket Problems and EJ257 Ringland Failure
- Subaru Oil Pickup Tube: O-Ring Failure, Symptoms and Fix
- Subaru WRX Generations and Years (Plus STI)
- WRX Exhaust: System Layout, Sound and Cat-Back Upgrades
- WRX vs STI: Engines, Specs, Reliability and Differences
Engines: specs, problems and swaps (116)
- 12 Valve vs 24 Valve Cummins vs Common Rail: Key Differences
- 5.3 Aluminum vs Iron Block: Weight, Strength and How to Tell
- 5.3 Vortec Problems: AFM Lifters, Oil Use and Common Fixes
- 5.3 vs 6.0 Vortec: Specs, Towing, Reliability and Swaps
- 5.4 Triton Problems: Spark Plugs, Cam Phasers and More
- 5.4 Triton Specs: Bore, Stroke, Firing Order and Power
- 5.4 Triton vs 5.3 Vortec: Ford vs Chevy V8 Compared
- 5.4 Triton vs 5.7 Hemi: Power, Reliability and Towing
- 5.7 Hemi Problems: Hemi Tick, MDS, Misfires and Problem Years
- 5.7 Hemi Specs: Horsepower by Year, Oil Capacity and Firing Order
- 5.7 Hemi vs 5.3 Vortec: Power, Reliability and Fuel Economy
- 5.9 Cummins Problems: 12 Valve, 24 Valve and Common Rail
- 5.9 Cummins Specs: Bore, Stroke, Firing Order and Versions
- 5.9 vs 6.7 Cummins: Specs, Towing, MPG and Longevity
- 6.0 Vortec Problems: Common Issues and Reliability
- 6.0 Vortec Specs: LQ4 vs LQ9, Oil Capacity and Problems
- 6.4 Power Stroke Problems: Radiators, EGR and Fuel
- 6.7 Cummins Problems: What Owners Commonly Report
- 6.7 Cummins Specs, Oil Capacity and Firing Order
- 6.7 Cummins Turbo Actuator: Symptoms, Testing and Calibration
- Bad Cam Phaser Symptoms: Ticking, Codes and the 5.4 3V
- Bad Engine Mount and Transmission Mount Symptoms
- Bad Glow Plug Symptoms: Diesel Cold Starts and Testing
- Bad Oil Pump Symptoms: Low Pressure, Noise and Causes
- Bad Rocker Arm Symptoms: Ticking, Misfire and Causes
- Bent Pushrod Symptoms: How to Tell and What Causes It
- Camshaft Position Sensor: Symptoms, Location and Testing
- Car Pulls to One Side When Braking: Causes and Fixes
- Car Rolls in Park: Is It Normal and What Causes It?
- Car Smells Like Gas: Causes, Safety and What to Do
- Check Engine Light Flashing: What It Means and What to Do
- Check Engine Light: Solid vs Flashing, Causes and How to Reset
- Chevy 350 vs 5.3: Small Block vs LS Compared
- Closed Deck vs Open Deck: Subaru EJ and FA Blocks Explained
- Compression Test and Leak-Down Test: How to Do Them
- CP3 Pump: What It Does, Which Trucks Use It and Failure Signs
- CP3 vs CP4: Diesel Injection Pump Differences and Failures
- Cracked Engine Block or Warped Cylinder Head: Signs and Fixes
- Crankshaft and Camshaft Position Sensor Symptoms
- Crate Engine vs Rebuild: Cost, Downtime and Which to Choose
- Cummins Generations: 1st Gen to 5th Gen Explained
- Cummins Head Gasket: Symptoms, Testing and Causes
- Cummins Killer Dowel Pin: Which Engines, Signs and the Fix
- Cummins Swap Guide: 12 Valve, 24 Valve or Common Rail?
- Cummins vs Duramax vs Powerstroke: Diesel Engines Compared
- Diesel Knocking: Normal Clatter vs a Real Problem
- Dodge 4.7 Engine: Specs, Common Problems and Reliability
- Dodge 4.7 vs 5.7 Hemi: Differences, Reliability and Towing
- Does Exhaust Add Horsepower? Cat-Back, Headers and Downpipes
- Eagle vs Non-Eagle 5.7 Hemi: What Changed in 2009
- EJ25 Problems: Head Gaskets, Ringlands and Bearings
- EJ25 vs EJ20: Subaru 2.5L and 2.0L EJ Engines Compared
- EJ255 vs EJ257: Subaru’s 2.5L Turbo Engines Compared
- EJ257 Problems: Ringland, Rod Bearings and Reliability
- EJ257 Specs: Subaru STI Engine Bore, Stroke and Power
- Engine Break In Procedure: First Start to First Oil Change
- Engine Burning Oil: Blue Smoke Causes, Diagnosis and Fixes
- Engine Knocking: Causes, Sounds and What to Do
- Engine Misfire and Flashing Check Engine Light: Causes, Codes
- Engine Overheating: Causes and What to Do
- Engine Replacement Checklist: What to Replace and Check
- Engine Replacement Cost: Short Block, Long Block or Complete Engine
- Engine Sputtering: Causes When Idling, Accelerating or Driving
- Engine Ticking Noise: At Idle, When Accelerating or When Cold
- FA20 Problems: BRZ FA20D and WRX FA20DIT Issues
- FA20 Specs (and FA24): Subaru BRZ and WRX Engines
- FA20 vs EJ25: Subaru WRX Engines Compared
- FA20 vs FA24: Subaru’s 2.0L and 2.4L Boxer Engines
- Forged vs Cast Pistons: Strength, Noise and When to Upgrade
- Head Studs vs Head Bolts: Which Do You Need?
- Hemi Tick: Common Causes of the 5.7 Hemi Tick and What to Check
- Horsepower vs Torque, and Wheel vs Crank Horsepower
- How Long Do Diesel Engines Last? Miles, Wear and Upkeep
- How Long Do Engines Last? Plus What Remanufactured Means
- How Long Does a 5.3 Vortec Last? Miles and Tips
- How Long Does a 5.4 Triton Last? Is It Reliable?
- How Long Does a 5.7 Hemi Last? Life Expectancy
- How Long Does a 6.0 Vortec Last? Miles and Life Expectancy
- How Long Does a Chevy 350 Last? Miles and Rebuild Signs
- How Long Does a Cummins Last? Miles by Engine
- How Long Does a Remanufactured Engine Last?
- How Long Does an LS Engine Last? LS1, LS3, 5.3 and 6.0
- How Long Does an LT1 Last? Gen II and Gen V LT1 Engines
- How to Tell If Engine Is Blown: Rod Knock, Smoke and Metal
- Hydrolocked Engine: Symptoms, Causes and Can It Be Fixed?
- Is It Worth Replacing an Engine or Transmission?
- Knock Sensor: Symptoms, Location, Codes and Testing
- Lifter Tick and AFM Lifter Failure: Causes and Fixes
- Low Compression in One Cylinder: Causes and How to Find It
- LS Engine Specs: LS1, LS3, LS7 and 5.3/6.0 Vortec Chart
- LS Swap Guide: What Is an LS Swap and What It Involves
- LS vs Vortec: What the Names Mean for GM Truck Engines
- LS1 Problems: Piston Slap, Leaks, Starting and Idle
- LS1 vs LS6: What’s the Difference?
- LS2 vs LS3: Differences, Power and Which to Choose
- LS3 vs LT1: Engine Differences, Heads and Boost
- LS7 Problems: Valve Guides, Heads and What to Check
- LT1 Problems: Gen II Optispark and Gen V Engine Issues
- MDS vs Non-MDS 5.7 Hemi: Differences and Lifters
- Milky Engine Oil: Condensation or Coolant Leak?
- PCV Valve: What It Does and Bad PCV Valve Symptoms
- Piston Rings: What They Do and Bad Piston Rings Symptoms
- Rod Bearing Failure, Spun Bearing, Seized and Hydrolocked Engines
- Seized Engine: Symptoms, Causes and Seized Engine vs Bad Starter
- Service Engine Soon Light: Meaning, Causes and How to Reset
- Short Block vs Long Block: What’s the Difference?
- Signs of a Blown Head Gasket and How Shops Confirm It
- Timing Chain vs Timing Belt and Timing Chain Symptoms
- Used Engine vs Rebuilt or Remanufactured: Which to Buy?
- Used vs Rebuilt vs Remanufactured Transmissions and Engines
- What Comes With a Long Block Engine?
- What Does a Camshaft Do? How Cams Shape Engine Power
- What Does a Crankshaft Do? Parts, Pulley and Problems
- What Is a Boxer Engine? Subaru Boxer Pros, Cons and Problems
- What Is a Dyno? How a Dyno Test Works
- What Is Compression Ratio? Engines, Boost and Octane
Brakes, steering, suspension and driveline (25)
- ABS and Traction Control Light On: Causes and Fixes
- Bad CV Axle Symptoms: Clicking, Vibration and Grease
- Bad Steering Box Symptoms, Adjustment and Replacement
- Bad U-Joint Symptoms: Clunks, Squeaks and Vibration
- Brake Pedal Goes to the Floor or Feels Spongy: Causes
- Brakes Squeaking: Causes, After New Pads and Fixes
- Car Vibrates at High Speed: Tires, Wheels, Brakes and More
- Clicking Noise When Turning: CV Joints and Other Causes
- Clunking Noise Over Bumps: Front, Rear and When Turning
- Death Wobble: Causes, How to Find It and How to Fix It
- Differential Noise: Whine, Clunk and Chatter Explained
- Drilled vs Slotted Rotors: Pros, Cons and Big Brake Kits
- Exhaust Brake: How It Works and Jake Brake vs Exhaust Brake
- Grinding Noise When Braking: Causes and What to Do
- How Long Do Brake Pads Last? Signs They Need Replacing
- How to Bleed Brakes: Two-Person, Vacuum and Gravity Methods
- Is a Big Brake Kit Worth It? When It Pays Off
- Loose Steering and Steering Wheel Play: Causes and Fixes
- Power Steering Pump Noise: Whine When Turning and Fixes
- Ram 2500 Steering Box Replacement: Signs and Steps
- Rear Disc Brake Conversion: Kits, Balance and Tips
- Steering Box Adjustment: How to Take Up Free Play
- Sticking Brake Caliper: Symptoms, Causes and Fixes
- Transfer Case Problems and 4WD Not Engaging: Causes
- Wheel Bearing Noise: Symptoms, Test and Safety
OBD2 trouble codes (428)
- P0008 Code: Engine Position System Bank 1, Causes and Fixes
- P0009 Code: Engine Position System Bank 2, Causes and Fixes
- P0010 Code: Intake Cam Actuator Circuit Bank 1, Causes and Fixes
- P0011 Code: Intake Cam Timing Over-Advanced, Causes and Fixes
- P0012 Code: Intake Cam Timing Over-Retarded, Causes and Fixes
- P0013 Code: Exhaust Cam Actuator Circuit Bank 1, Causes and Fixes
- P0014 Code: Exhaust Cam Timing Over-Advanced, Causes and Fixes
- P0015 Code: Exhaust Cam Over-Retarded Bank 1, Causes and Fixes
- P0016 Code: Crank/Cam Correlation Bank 1 A, Causes and Fixes
- P0017 Code: Crank/Cam Correlation Bank 1 B, Causes and Fixes
- P0018 Code: Crank/Cam Correlation Bank 2 A, Causes and Fixes
- P0019 Code: Crank/Cam Correlation Bank 2 B, Causes and Fixes
- P0020 Code: Intake Cam Actuator Circuit Bank 2, Causes and Fixes
- P0021 Code: Intake Cam Over-Advanced Bank 2, Causes and Fixes
- P0022 Code: Intake Cam Over-Retarded Bank 2, Causes and Fixes
- P0023 Code: Exhaust Cam Actuator Circuit Bank 2, Causes and Fixes
- P0024 Code: Exhaust Cam Over-Advanced Bank 2, Causes and Fixes
- P0025 Code: Exhaust Cam Over-Retarded Bank 2, Causes and Fixes
- P0030 Code: O2 Heater Circuit B1S1, Causes and Fixes
- P0031 Code: O2 Heater Circuit Low B1S1, Causes and Fixes
- P0032 Code: O2 Heater Circuit High B1S1, Causes and Fixes
- P0037 Code: O2 Heater Circuit Low B1S2, Causes and Fixes
- P0038 Code: O2 Heater Circuit High B1S2, Causes and Fixes
- P0045 Code: Boost Control Circuit Open, Causes and Fixes
- P0046 Code: Boost Control Circuit Range, Causes and Fixes
- P0051 Code: O2 Heater Circuit Low B2S1, Causes and Fixes
- P0052 Code: O2 Heater Circuit High B2S1, Causes and Fixes
- P0057 Code: O2 Heater Circuit Low B2S2, Causes and Fixes
- P0058 Code: O2 Heater Circuit High B2S2, Causes and Fixes
- P0068: MAP/MAF Throttle Position Correlation, Causes and Fixes
- P0069 Code: MAP/Barometric Correlation, Causes and Fixes
- P0071 Code: Ambient Air Temp Sensor Range, Causes and Fixes
- P0072 Code: Ambient Air Temp Sensor Low, Causes and Fixes
- P0073 Code: Ambient Air Temp Sensor High, Causes and Fixes
- P0075 Code: Intake Valve Control Solenoid, Causes and Fixes
- P0076 Code: Intake Valve Control Solenoid Low, Causes and Fixes
- P0077 Code: Intake Valve Control Solenoid High, Causes and Fixes
- P0087 Code: Fuel Rail Pressure Too Low, Causes and Fixes
- P0088 Code: Fuel Rail Pressure Too High, Causes and Fixes
- P0089 Code: Fuel Pressure Regulator Performance, Causes and Fixes
- P0090 Code: Fuel Pressure Regulator Circuit, Causes and Fixes
- P0091 Code: Fuel Pressure Regulator Circuit Low, Causes and Fixes
- P0092: Fuel Pressure Regulator Circuit High, Causes and Fixes
- P0093 Code: Fuel System Large Leak, Causes and Fixes
- P0094 Code: Fuel System Small Leak, Causes and Fixes
- P0097 Code: IAT Sensor 2 Low, Causes and Fixes
- P0098 Code: IAT Sensor 2 High, Causes and Fixes
- P0100 Code: MAF Circuit Malfunction, Causes and Fixes
- P0101 Code: MAF Sensor Range/Performance, Causes and Fixes
- P0102 Code: MAF Sensor Circuit Low, Causes and Fixes
- P0103 Code: MAF Sensor Circuit High, Causes and Fixes
- P0105 Code: MAP Sensor Circuit, Causes and Fixes
- P0106 Code: MAP Sensor Range/Performance, Causes and Fixes
- P0107 Code: MAP Sensor Circuit Low, Causes and Fixes
- P0108 Code: MAP Sensor Circuit High, Causes and Fixes
- P0110 Code: IAT Sensor Circuit, Causes and Fixes
- P0111 Code: IAT Sensor Range/Performance, Causes and Fixes
- P0112 Code: IAT Sensor Circuit Low, Causes and Fixes
- P0113 Code: Intake Air Temp Sensor High, Causes and Fixes
- P0114 Code: IAT Sensor Intermittent, Causes and Fixes
- P0115 Code: Coolant Temp Sensor Circuit, Causes and Fixes
- P0116 Code: Coolant Temp Range/Performance, Causes and Fixes
- P0117 Code: Coolant Temp Sensor Low, Causes and Fixes
- P0118 Code: Coolant Temp Sensor High, Causes and Fixes
- P0119 Code: Coolant Temp Sensor Erratic, Causes and Fixes
- P0120 Code: Throttle Position Sensor A Circuit, Causes and Fixes
- P0121 Code: Throttle Position Sensor Range, Causes and Fixes
- P0122 Code: Throttle Position Sensor Low, Causes and Fixes
- P0123 Code: Throttle Position Sensor High, Causes and Fixes
- P0124: Throttle Position Sensor Intermittent, Causes and Fixes
- P0125 Code: Insufficient Coolant Temp for Closed Loop
- P0126 Code: Insufficient Coolant Temperature, Causes and Fixes
- P0127 Code: Intake Air Temp Too High, Causes and Fixes
- P0128 Code: Thermostat Below Regulating Temp, Causes and Fixes
- P0129 Code: Barometric Pressure Too Low, Causes and Fixes
- P0130 Code: O2 Sensor Circuit B1S1, Causes and Fixes
- P0131: O2 Sensor Low Voltage Bank 1 Sensor 1, Causes and Fixes
- P0132 Code: O2 Sensor High Voltage B1S1, Causes and Fixes
- P0133 Code: O2 Sensor Slow Response B1S1, Causes and Fixes
- P0134 Code: O2 Sensor No Activity B1S1, Causes and Fixes
- P0135 Code: O2 Sensor Heater Circuit B1S1, Causes and Fixes
- P0136 Code: O2 Sensor Circuit B1S2, Causes and Fixes
- P0137 Code: O2 Sensor Low Voltage B1S2, Causes and Fixes
- P0138 Code: O2 Sensor High Voltage B1S2, Causes and Fixes
- P0139 Code: O2 Sensor Slow Response B1S2, Causes and Fixes
- P0140 Code: O2 Sensor No Activity B1S2, Causes and Fixes
- P0141 Code: O2 Sensor Heater Circuit B1S2, Causes and Fixes
- P0151 Code: O2 Sensor Low Voltage B2S1, Causes and Fixes
- P0153 Code: O2 Sensor Slow Response B2S1, Causes and Fixes
- P0154 Code: O2 Sensor No Activity B2S1, Causes and Fixes
- P0155 Code: O2 Heater Circuit B2S1, Causes and Fixes
- P0156 Code: O2 Sensor Circuit B2S2, Causes and Fixes
- P0157 Code: O2 Sensor Low Voltage B2S2, Causes and Fixes
- P0158 Code: O2 Sensor High Voltage B2S2, Causes and Fixes
- P0159 Code: O2 Sensor Slow Response B2S2, Causes and Fixes
- P0161 Code: O2 Heater Circuit B2S2, Causes and Fixes
- P0171 Code: System Too Lean Bank 1, Causes and Fixes
- P0172 Code: System Too Rich Bank 1, Causes and Fixes
- P0174 Code: System Too Lean Bank 2, Causes and Fixes
- P0175 Code: System Too Rich Bank 2, Causes and Fixes
- P0190 Code: Fuel Rail Pressure Sensor Circuit, Causes and Fixes
- P0191 Code: Fuel Rail Pressure Sensor Range, Causes and Fixes
- P0192 Code: Fuel Rail Pressure Sensor Low, Causes and Fixes
- P0193 Code: Fuel Rail Pressure Sensor High, Causes and Fixes
- P0200 Code: Injector Circuit, Causes and Fixes
- P0201 Code: Injector Circuit Cylinder 1, Causes and Fixes
- P0202 Code: Injector Circuit Cylinder 2, Causes and Fixes
- P0203 Code: Injector Circuit Cylinder 3, Causes and Fixes
- P0204 Code: Injector Circuit Cylinder 4, Causes and Fixes
- P0205 Code: Injector Circuit Cylinder 5, Causes and Fixes
- P0206 Code: Injector Circuit Cylinder 6, Causes and Fixes
- P0207 Code: Injector Circuit Cylinder 7, Causes and Fixes
- P0208 Code: Injector Circuit Cylinder 8, Causes and Fixes
- P0217 Code: Engine Over Temperature, Causes and Fixes
- P0218 Code: Transmission Fluid Over Temperature, Causes and Fixes
- P0219 Code: Engine Overspeed, Causes and Fixes
- P0220 Code: Throttle Position Sensor B Circuit, Causes and Fixes
- P0221 Code: Throttle Position Sensor B Range, Causes and Fixes
- P0222 Code: Throttle Position Sensor B Low, Causes and Fixes
- P0223 Code: Throttle Position Sensor B High, Causes and Fixes
- P0230 Code: Fuel Pump Primary Circuit, Causes and Fixes
- P0231 Code: Fuel Pump Secondary Circuit Low, Causes and Fixes
- P0232 Code: Fuel Pump Secondary Circuit High, Causes and Fixes
- P0234 Code: Turbo/Supercharger Overboost, Causes and Fixes
- P0236 Code: Boost Sensor Range/Performance, Causes and Fixes
- P0237 Code: Boost Sensor Circuit Low, Causes and Fixes
- P0238 Code: Boost Sensor Circuit High, Causes and Fixes
- P0243 Code: Wastegate Solenoid A, Causes and Fixes
- P0244 Code: Wastegate Solenoid A Range, Causes and Fixes
- P0245 Code: Wastegate Solenoid A Low, Causes and Fixes
- P0246 Code: Wastegate Solenoid A High, Causes and Fixes
- P0261 Code: Cylinder 1 Injector Circuit Low, Causes and Fixes
- P0262 Code: Cylinder 1 Injector Circuit High, Causes and Fixes
- P0263 Code: Cylinder 1 Contribution/Balance, Causes and Fixes
- P0264 Code: Cylinder 2 Injector Circuit Low, Causes and Fixes
- P0265 Code: Cylinder 2 Injector Circuit High, Causes and Fixes
- P0266 Code: Cylinder 2 Contribution/Balance, Causes and Fixes
- P0267 Code: Cylinder 3 Injector Circuit Low, Causes and Fixes
- P0268 Code: Cylinder 3 Injector Circuit High, Causes and Fixes
- P0269 Code: Cylinder 3 Contribution/Balance, Causes and Fixes
- P0270 Code: Cylinder 4 Injector Circuit Low, Causes and Fixes
- P0271 Code: Cylinder 4 Injector Circuit High, Causes and Fixes
- P0272 Code: Cylinder 4 Contribution/Balance, Causes and Fixes
- P0273 Code: Cylinder 5 Injector Circuit Low, Causes and Fixes
- P0274 Code: Cylinder 5 Injector Circuit High, Causes and Fixes
- P0275 Code: Cylinder 5 Contribution/Balance, Causes and Fixes
- P0276 Code: Cylinder 6 Injector Circuit Low, Causes and Fixes
- P0277 Code: Cylinder 6 Injector Circuit High, Causes and Fixes
- P0278 Code: Cylinder 6 Contribution/Balance, Causes and Fixes
- P0279 Code: Cylinder 7 Injector Circuit Low, Causes and Fixes
- P0280 Code: Cylinder 7 Injector Circuit High, Causes and Fixes
- P0282 Code: Cylinder 8 Injector Circuit Low, Causes and Fixes
- P0283 Code: Cylinder 8 Injector Circuit High, Causes and Fixes
- P0299 Code: Turbo/Supercharger Underboost, Causes and Fixes
- P0300 Code: Random/Multiple Misfire, Causes and Fixes
- P0301 Code: Cylinder 1 Misfire Causes and How to Fix It
- P0302 Code: Cylinder 2 Misfire Causes and How to Fix It
- P0303 Code: Cylinder 3 Misfire Causes and How to Fix It
- P0304 Code: Cylinder 4 Misfire Causes and How to Fix It
- P0305 Code: Cylinder 5 Misfire Causes and How to Fix It
- P0306 Code: Cylinder 6 Misfire Causes and How to Fix It
- P0307 Code: Cylinder 7 Misfire Causes and How to Fix It
- P0308 Code: Cylinder 8 Misfire Causes and How to Fix It
- P0316 Code: Misfire on Startup, Causes and Fixes
- P0320 Code: Engine Speed Input Circuit, Causes and Fixes
- P0322 Code: Engine Speed Input No Signal, Causes and Fixes
- P0324 Code: Knock Control System Error, Causes and Fixes
- P0325 Code: Knock Sensor 1 Circuit, Causes and Fixes
- P0326 Code: Knock Sensor 1 Range/Performance, Causes and Fixes
- P0327 Code: Knock Sensor 1 Circuit Low, Causes and Fixes
- P0328 Code: Knock Sensor 1 Circuit High, Causes and Fixes
- P0330 Code: Knock Sensor 2 Circuit Bank 2, Causes and Fixes
- P0332 Code: Knock Sensor 2 Circuit Low, Causes and Fixes
- P0333 Code: Knock Sensor 2 High Bank 2, Causes and Fixes
- P0335 Code: Crankshaft Position Sensor, Causes and Fixes
- P0336 Code: Crank Sensor Range/Performance, Causes and Fixes
- P0339 Code: Crank Sensor Intermittent, Causes and Fixes
- P0340 Code: Camshaft Position Sensor, Causes and Fixes
- P0341 Code: Cam Sensor Range/Performance, Causes and Fixes
- P0342 Code: Cam Sensor A Circuit Low, Causes and Fixes
- P0343 Code: Cam Sensor A Circuit High, Causes and Fixes
- P0344 Code: Cam Sensor A Intermittent, Causes and Fixes
- P0345 Code: Cam Sensor A Bank 2, Causes and Fixes
- P0346 Code: Cam Sensor A Range Bank 2, Causes and Fixes
- P0347 Code: Cam Sensor A Low Bank 2, Causes and Fixes
- P0350 Code: Ignition Coil Circuit, Causes and Fixes
- P0351 Code: Ignition Coil A Circuit, Causes and Fixes
- P0352 Code: Ignition Coil B Circuit, Causes and Fixes
- P0353 Code: Ignition Coil C Circuit, Causes and Fixes
- P0354 Code: Ignition Coil D Circuit, Causes and Fixes
- P0355 Code: Ignition Coil E Circuit, Causes and Fixes
- P0356 Code: Ignition Coil F Circuit, Causes and Fixes
- P0357 Code: Ignition Coil G Circuit, Causes and Fixes
- P0358 Code: Ignition Coil H Circuit, Causes and Fixes
- P0365 Code: Cam Sensor B Bank 1, Causes and Fixes
- P0366 Code: Cam Sensor B Range/Performance, Causes and Fixes
- P0369 Code: Cam Sensor B Intermittent, Causes and Fixes
- P0380 Code: Glow Plug Circuit A, Causes and Fixes
- P0460 Code: Fuel Level Sensor Circuit, Causes and Fixes
- P0461 Code: Fuel Level Sensor Range, Causes and Fixes
- P0462 Code: Fuel Level Sensor Low, Causes and Fixes
- P0463 Code: Fuel Level Sensor High, Causes and Fixes
- P0464 Code: Fuel Level Sensor Intermittent, Causes and Fixes
- P0480 Code: Cooling Fan 1 Control Circuit, Causes and Fixes
- P0481 Code: Cooling Fan 2 Control Circuit, Causes and Fixes
- P0500 Code: Vehicle Speed Sensor, Causes and Fixes
- P0501 Code: Vehicle Speed Sensor Range, Causes and Fixes
- P0502 Code: Vehicle Speed Sensor Low Input, Causes and Fixes
- P0503 Code: Vehicle Speed Sensor Erratic, Causes and Fixes
- P0504 Code: Brake Switch A/B Correlation, Causes and Fixes
- P0505 Code: Idle Air Control System, Causes and Fixes
- P0506 Code: Idle RPM Lower Than Expected, Causes and Fixes
- P0507 Code: Idle RPM Higher Than Expected, Causes and Fixes
- P0508 Code: Idle Air Control Circuit Low, Causes and Fixes
- P0509 Code: Idle Air Control Circuit High, Causes and Fixes
- P0510 Code: Closed Throttle Position Switch, Causes and Fixes
- P0520 Code: Oil Pressure Sensor Circuit, Causes and Fixes
- P0521: Oil Pressure Sensor Range/Performance, Causes and Fixes
- P0522 Code: Oil Pressure Sensor Low Voltage, Causes and Fixes
- P0523 Code: Oil Pressure Sensor High Voltage, Causes and Fixes
- P0524 Code: Engine Oil Pressure Too Low, Causes and Fixes
- P0526 Code: Fan Speed Sensor Circuit, Causes and Fixes
- P0532 Code: A/C Pressure Sensor Low, Causes and Fixes
- P0533 Code: A/C Pressure Sensor High, Causes and Fixes
- P0560 Code: System Voltage, Causes and Fixes
- P0562 Code: System Voltage Low, Causes and Fixes
- P0563 Code: System Voltage High, Causes and Fixes
- P0564 Code: Cruise Control Switch Input, Causes and Fixes
- P0571 Code: Brake Switch A Circuit, Causes and Fixes
- P0600 Code: Serial Communication Link, Causes and Fixes
- P0601 Code: ECM Memory Check Sum Error, Causes and Fixes
- P0602 Code: Control Module Programming Error, Causes and Fixes
- P0603 Code: Control Module KAM Error, Causes and Fixes
- P0604 Code: Control Module RAM Error, Causes and Fixes
- P0605 Code: Control Module ROM Error, Causes and Fixes
- P0606 Code: ECM Processor Fault, Causes and Fixes
- P0607 Code: Control Module Performance, Causes and Fixes
- P0608 Code: Control Module VSS Output, Causes and Fixes
- P0611 Code: Injector Control Module Performance, Causes and Fixes
- P0613 Code: TCM Processor, Causes and Fixes
- P0615 Code: Starter Relay Circuit, Causes and Fixes
- P0616 Code: Starter Relay Circuit Low, Causes and Fixes
- P0617 Code: Starter Relay Circuit High, Causes and Fixes
- P0620 Code: Generator Control Circuit, Causes and Fixes
- P0621 Code: Generator Lamp Circuit, Causes and Fixes
- P0622 Code: Generator Field Circuit, Causes and Fixes
- P0627 Code: Fuel Pump Control Circuit, Causes and Fixes
- P0641 Code: Sensor Reference Voltage A, Causes and Fixes
- P0642 Code: Sensor Reference Voltage A Low, Causes and Fixes
- P0643 Code: Sensor Reference Voltage A High, Causes and Fixes
- P0645 Code: A/C Clutch Relay Circuit, Causes and Fixes
- P0646 Code: A/C Clutch Relay Circuit Low, Causes and Fixes
- P0647 Code: A/C Clutch Relay Circuit High, Causes and Fixes
- P0650 Code: Check Engine Light Circuit, Causes and Fixes
- P0651 Code: Sensor Reference Voltage B, Causes and Fixes
- P0652 Code: Sensor Reference Voltage B Low, Causes and Fixes
- P0657 Code: Actuator Supply Voltage A Circuit, Causes and Fixes
- P0658 Code: Actuator Supply Voltage A Low, Causes and Fixes
- P0659 Code: Actuator Supply Voltage A High, Causes and Fixes
- P0670 Code: Glow Plug Module Control Circuit, Causes and Fixes
- P0671 Code: Cylinder 1 Glow Plug Circuit, Causes and Fixes
- P0672 Code: Cylinder 2 Glow Plug Circuit, Causes and Fixes
- P0673 Code: Cylinder 3 Glow Plug Circuit, Causes and Fixes
- P0674 Code: Cylinder 4 Glow Plug Circuit, Causes and Fixes
- P0675 Code: Cylinder 5 Glow Plug Circuit, Causes and Fixes
- P0676 Code: Cylinder 6 Glow Plug Circuit, Causes and Fixes
- P0677 Code: Cylinder 7 Glow Plug Circuit, Causes and Fixes
- P0678 Code: Cylinder 8 Glow Plug Circuit, Causes and Fixes
- P0683 Code: Glow Plug Module Communication, Causes and Fixes
- P0685 Code: ECM Power Relay Circuit, Causes and Fixes
- P0686 Code: ECM Power Relay Circuit Low, Causes and Fixes
- P0687 Code: ECM Power Relay Circuit High, Causes and Fixes
- P0688 Code: ECM Power Relay Sense Circuit, Causes and Fixes
- P0689 Code: ECM Power Relay Sense Low, Causes and Fixes
- P0690 Code: ECM Power Relay Sense High, Causes and Fixes
- P0691 Code: Fan 1 Control Circuit Low, Causes and Fixes
- P0692 Code: Fan 1 Control Circuit High, Causes and Fixes
- P0693 Code: Fan 2 Control Circuit Low, Causes and Fixes
- P0694 Code: Fan 2 Control Circuit High, Causes and Fixes
- P0700 Code: Transmission Control System, Causes and Fixes
- P0702 Code: Transmission Control Electrical, Causes and Fixes
- P0703 Code: Brake Switch B Input, Causes and Fixes
- P0704 Code: Clutch Switch Input, Causes and Fixes
- P0705 Code: Transmission Range Sensor Circuit, Causes and Fixes
- P0706 Code: Transmission Range Sensor Range, Causes and Fixes
- P0707 Code: Range Sensor Circuit Low, Causes and Fixes
- P0708 Code: Range Sensor Circuit High, Causes and Fixes
- P0709 Code: Range Sensor Intermittent, Causes and Fixes
- P0710 Code: Trans Fluid Temp Sensor Circuit, Causes and Fixes
- P0711 Code: Trans Fluid Temp Sensor Range, Causes and Fixes
- P0712 Code: Trans Fluid Temp Sensor Low, Causes and Fixes
- P0713 Code: Trans Fluid Temp Sensor High, Causes and Fixes
- P0714: Trans Fluid Temp Sensor Intermittent, Causes and Fixes
- P0715 Code: Input Speed Sensor Circuit, Causes and Fixes
- P0716 Code: Input/Turbine Speed Sensor Range, Causes and Fixes
- P0717 Code: Input Speed Sensor No Signal, Causes and Fixes
- P0718 Code: Input Speed Sensor Intermittent, Causes and Fixes
- P0719 Code: Brake Switch B Circuit Low, Causes and Fixes
- P0720 Code: Output Speed Sensor Circuit, Causes and Fixes
- P0721 Code: Output Speed Sensor Range, Causes and Fixes
- P0722 Code: Output Speed Sensor No Signal, Causes and Fixes
- P0723 Code: Output Speed Sensor Intermittent, Causes and Fixes
- P0724 Code: Brake Switch B Circuit High, Causes and Fixes
- P0726 Code: Engine Speed Input Range, Causes and Fixes
- P0727 Code: Engine Speed Input No Signal, Causes and Fixes
- P0729 Code: Gear 6 Incorrect Ratio, Causes and Fixes
- P0730 Code: Incorrect Gear Ratio, Causes and Fixes
- P0731 Code: Gear 1 Incorrect Ratio, Causes and Fixes
- P0732 Code: Gear 2 Incorrect Ratio, Causes and Fixes
- P0733 Code: Gear 3 Incorrect Ratio, Causes and Fixes
- P0734 Code: Gear 4 Incorrect Ratio, Causes and Fixes
- P0735 Code: Gear 5 Incorrect Ratio, Causes and Fixes
- P0736 Code: Reverse Incorrect Ratio, Causes and Fixes
- P0740 Code: Torque Converter Clutch Circuit, Causes and Fixes
- P0741 Code: Torque Converter Clutch Stuck Off, Causes and Fixes
- P0742 Code: TCC Stuck On, Causes and Fixes
- P0743 Code: TCC Circuit Electrical, Causes and Fixes
- P0744 Code: TCC Circuit Intermittent, Causes and Fixes
- P0745 Code: Pressure Control Solenoid A, Causes and Fixes
- P0746: Pressure Control Solenoid A Performance, Causes and Fixes
- P0747: Pressure Control Solenoid A Stuck On, Causes and Fixes
- P0748: Pressure Control Solenoid A Electrical, Causes and Fixes
- P0750 Code: Shift Solenoid A, Causes and Fixes
- P0751 Code: Shift Solenoid A Stuck Off, Causes and Fixes
- P0752 Code: Shift Solenoid A Stuck On, Causes and Fixes
- P0753 Code: Shift Solenoid A Electrical, Causes and Fixes
- P0755 Code: Shift Solenoid B, Causes and Fixes
- P0756 Code: Shift Solenoid B Stuck Off, Causes and Fixes
- P0757 Code: Shift Solenoid B Stuck On, Causes and Fixes
- P0758 Code: Shift Solenoid B Electrical, Causes and Fixes
- P0760 Code: Shift Solenoid C, Causes and Fixes
- P0761 Code: Shift Solenoid C Stuck Off, Causes and Fixes
- P0763 Code: Shift Solenoid C Electrical, Causes and Fixes
- P0765 Code: Shift Solenoid D, Causes and Fixes
- P0766 Code: Shift Solenoid D Stuck Off, Causes and Fixes
- P0768 Code: Shift Solenoid D Electrical, Causes and Fixes
- P0770 Code: Shift Solenoid E, Causes and Fixes
- P0773 Code: Shift Solenoid E Electrical, Causes and Fixes
- P0776 Code: Pressure Control Solenoid B, Causes and Fixes
- P0777: Pressure Control Solenoid B Stuck On, Causes and Fixes
- P0778: Pressure Control Solenoid B Electrical, Causes and Fixes
- P0780 Code: Shift Error, Causes and Fixes
- P0796 Code: Pressure Control Solenoid C, Causes and Fixes
- P0797: Pressure Control Solenoid C Stuck On, Causes and Fixes
- P0841 Code: Trans Fluid Pressure Sensor Range, Causes and Fixes
- P0842 Code: Trans Pressure Switch A Low, Causes and Fixes
- P0843 Code: Trans Pressure Switch A High, Causes and Fixes
- P0845 Code: Trans Pressure Switch B Circuit, Causes and Fixes
- P0846 Code: Trans Pressure Switch B Range, Causes and Fixes
- P0847 Code: Trans Pressure Switch B Low, Causes and Fixes
- P0848 Code: Trans Pressure Switch B High, Causes and Fixes
- P0850 Code: Park/Neutral Switch Input, Causes and Fixes
- P0851 Code: Park/Neutral Switch Low, Causes and Fixes
- P0852 Code: Park/Neutral Switch High, Causes and Fixes
- P0868 Code: Transmission Fluid Pressure Low, Causes and Fixes
- P0869 Code: Transmission Fluid Pressure High, Causes and Fixes
- P0870 Code: Trans Pressure Switch C Circuit, Causes and Fixes
- P0871 Code: Trans Pressure Switch C Range, Causes and Fixes
- P0872 Code: Trans Pressure Switch C Low, Causes and Fixes
- P0873 Code: Trans Pressure Switch C High, Causes and Fixes
- P0880 Code: TCM Power Input Signal, Causes and Fixes
- P0882 Code: TCM Power Input Low, Causes and Fixes
- P0884 Code: TCM Power Input Intermittent, Causes and Fixes
- P0894 Code: Transmission Component Slipping, Causes and Fixes
- P0961 Code: PC Solenoid A Range, Causes and Fixes
- P0962 Code: PC Solenoid A Circuit Low, Causes and Fixes
- P0963 Code: PC Solenoid A Circuit High, Causes and Fixes
- P0964 Code: PC Solenoid B Circuit, Causes and Fixes
- P0965 Code: PC Solenoid B Range, Causes and Fixes
- P0966 Code: PC Solenoid B Circuit Low, Causes and Fixes
- P0967 Code: PC Solenoid B Circuit High, Causes and Fixes
- P0970 Code: PC Solenoid C Circuit Low, Causes and Fixes
- P0971 Code: PC Solenoid C Circuit High, Causes and Fixes
- P0973: Shift Solenoid A Control Circuit Low, Causes and Fixes
- P0974 Code: Shift Solenoid A Circuit High, Causes and Fixes
- P0975 Code: Shift Solenoid B Range, Causes and Fixes
- P0976 Code: Shift Solenoid B Circuit Low, Causes and Fixes
- P0977 Code: Shift Solenoid B Circuit High, Causes and Fixes
- P0978 Code: Shift Solenoid C Range, Causes and Fixes
- P0979 Code: Shift Solenoid C Circuit Low, Causes and Fixes
- P2004 Code: Intake Runner Stuck Open Bank 1, Causes and Fixes
- P2005 Code: Intake Runner Stuck Open Bank 2, Causes and Fixes
- P2006 Code: Intake Runner Stuck Closed Bank 1, Causes and Fixes
- P2007 Code: Intake Runner Stuck Closed Bank 2, Causes and Fixes
- P2101 Code: Throttle Actuator Motor Range, Causes and Fixes
- P2111 Code: Throttle Actuator Stuck Open, Causes and Fixes
- P2112 Code: Throttle Actuator Stuck Closed, Causes and Fixes
- P2119 Code: Throttle Body Range/Performance, Causes and Fixes
- P2122 Code: Pedal Position Sensor D Low, Causes and Fixes
- P2127 Code: Pedal Position Sensor E Low, Causes and Fixes
- P2128 Code: Pedal Position Sensor E High, Causes and Fixes
- P2135: Throttle Position Sensor Correlation, Causes and Fixes
- P2138 Code: Pedal Position Sensor Correlation, Causes and Fixes
- P2176 Code: Idle Position Not Learned, Causes and Fixes
- P2187 Code: System Too Lean at Idle, Causes and Fixes
- P2188 Code: System Too Rich at Idle, Causes and Fixes
- P2195 Code: O2 Sensor Stuck Lean B1S1, Causes and Fixes
- P2196 Code: O2 Sensor Stuck Rich B1S1, Causes and Fixes
- P2263 Code: Boost System Performance, Causes and Fixes
- P2270 Code: O2 Sensor Stuck Lean B1S2, Causes and Fixes
- P2271 Code: O2 Sensor Stuck Rich B1S2, Causes and Fixes
- P2272 Code: O2 Sensor Stuck Lean B2S2, Causes and Fixes
- P2273 Code: O2 Sensor Stuck Rich B2S2, Causes and Fixes
- P2279 Code: Intake Air System Leak, Causes and Fixes
- P2563 Code: VGT Position Sensor Range, Causes and Fixes
- P2610 Code: ECM Engine Off Timer, Causes and Fixes
- P2646 Code: Rocker Arm Actuator Stuck Off, Causes and Fixes
- U0001 Code: High Speed CAN Bus, Causes and Fixes
- U0073 Code: Communication Bus A Off, Causes and Fixes
- U0100 Code: Lost Communication With ECM, Causes and Fixes
- U0101 Code: Lost Communication With TCM, Causes and Fixes
- U0103: Lost Communication With Shift Module, Causes and Fixes
- U0104: Lost Communication With Cruise Module, Causes and Fixes
- U0107: Lost Communication With Throttle Module, Causes and Fixes
- U0114 Code: Lost Communication With 4WD Module, Causes and Fixes
- U0121 Code: Lost Communication With ABS, Causes and Fixes
- U0128 Code: Lost Communication With Park Brake Module
- U0131: Lost Communication With Power Steering, Causes and Fixes
- U0140 Code: Lost Communication With BCM, Causes and Fixes
- U0151: Lost Communication With Airbag Module, Causes and Fixes
- U0155 Code: Lost Communication With Cluster, Causes and Fixes
- U0164 Code: Lost Communication With HVAC Module, Causes and Fixes
- U0167 Code: Lost Communication With Immobilizer, Causes and Fixes
- U0184 Code: Lost Communication With Radio, Causes and Fixes
- U0199: Lost Communication With Door Module A, Causes and Fixes
- U0401 Code: Invalid Data From ECM/PCM, Causes and Fixes
- U0402 Code: Invalid Data From TCM, Causes and Fixes
- U0415 Code: Invalid Data From ABS Module, Causes and Fixes
Diagnostics: sensors and symptoms (82)
- Alternator or Battery? How to Tell Which Is Bad
- Bad Alternator Symptoms and How to Test an Alternator
- Bad Diesel Injector Symptoms and How to Test Them
- Bad Fuel Injector Symptoms, Testing and Sizing
- Bad Fuel Pump, Clogged Fuel Filter and Regulator Symptoms
- Bad Ground Symptoms in a Car and How to Test Grounds
- Bad Ignition Coil Symptoms and How to Test a Coil
- Bad Radiator Symptoms: Leaks, Overheating and Sludge
- Bad Spark Plug Symptoms, Gap and When to Replace Them
- Bad Starter Symptoms: Clicks, Grinding and No Crank
- Bad Water Pump and Thermostat Symptoms
- Battery Light On While Driving: Causes and What to Do
- Burning Smell From Car: What It Means and What to Do
- Car Battery Dies Overnight: Causes and How to Find the Drain
- Car Hesitates When Accelerating: Causes and Fixes
- Car Jerks or Shakes When Accelerating: Causes and Fixes
- Car Jerks When Shifting: Park to Drive and Between Gears
- Car Loses Power When Accelerating: Causes and Diagnosis
- Car Overheating When Idling: Causes and Fixes
- Car Shakes When Accelerating: Causes by Speed and Symptom
- Car Won’t Go Into Gear: Manual and Automatic Causes
- Car Won’t Move in Drive: Causes and What to Check
- Car Won’t Start, Just Clicks: What the Clicking Means
- Car Won’t Start: No Crank, Cranks but No Start, or Dies
- Coolant Leak: Signs, Causes and How to Find It
- Coolant Temperature Sensor: Bad ECT Sensor Symptoms
- Diesel Black Smoke: Causes Under Load, at Idle and Startup
- Diesel Blow-By: Symptoms, Testing, Causes and Fixes
- Diesel Fuel Gelling: Temperatures, Symptoms and Fixes
- Diesel Hard to Start When Cold: Causes and Tips
- Diesel Lift Pump: What It Does and Failure Symptoms
- Diesel Losing Power on Hills or Under Load: Causes
- Diesel vs Gas Truck: Which Should You Buy?
- Diesel White Smoke: Cold Start, Idle and Under Load
- Diesel Won’t Start: Cranks, Cold Starts and After a Filter Change
- Drive Cycle and Readiness Monitors Explained
- Exhaust Drone: What Causes It and How to Get Rid of It
- Exhaust Leak Symptoms: Manifold Leaks, Sounds and Safety
- Fuel Filter: Clogged Filter Symptoms and When to Change It
- Fuel Injector Sizing: Formula, Duty Cycle and E85
- Fuel Pressure Regulator: Bad Regulator Symptoms and Testing
- Fuel Pump Sizing: How Big a Fuel Pump Do You Need?
- Fuel Trim Explained: Short-Term vs Long-Term Fuel Trim
- How Long Do Car Batteries Last? Signs, Voltage and Jump-Starting
- How Long Does a Fuel Pump Last? Miles and Warning Signs
- How Often to Change Spark Plugs: Intervals by Plug Type
- How to Bleed a Cooling System (Remove Air From Coolant)
- How to Bleed a Diesel Fuel System After a Filter Change
- How to Jump Start a Car: Step-by-Step Cable Order
- How to Use an OBD2 Scanner: Read, Understand and Clear Codes
- Idle Air Control Valve: Symptoms, Cleaning and Testing
- Iridium vs Platinum Spark Plugs: Which Should You Use?
- Losing Coolant but No Leak? Where It Goes and How to Find It
- Low Oil Pressure: Causes and What to Do When the Light Comes On
- MAF Sensor Symptoms and How to Clean a MAF Sensor
- MAP Sensor: Symptoms, Codes and How to Test It
- O2 Sensor: Symptoms, Location, Codes and Replacement
- OBD2 Codes List: Common Engine and Transmission Codes
- Oil in Coolant: Causes, Diagnosis and What to Do
- Oil Leak: Rear Main Seal, Valve Cover and Oil Pan Gasket Leaks
- Oil Pan Gasket Leak: Symptoms, Quick Fixes and Repair
- Oil Pressure Light On: What It Means and What to Do
- Oil Pressure Sensor: Bad Sensor Symptoms or Low Oil Pressure?
- Radiator Fan Not Turning On: Causes and Quick Checks
- Rear Main Seal Leak Symptoms, Causes and Repair
- Rough Idle: Causes, Codes and How to Fix It
- Serpentine Belt: Symptoms, Squeal, Tensioner and Replacement
- Spark Plug Wires: Bad Wire Symptoms, Testing and Replacement
- Synthetic vs Conventional Oil and How Often to Change It
- Thermostat Stuck Open or Closed: Symptoms and Tests
- Throttle Body: What It Does, Bad Symptoms and How to Clean It
- Throttle Position Sensor: Symptoms, Codes and Reduced Power
- Timing Belt: When to Replace It and Interference Engines
- Titanium vs Stainless Steel Exhaust: Weight, Sound and Cost
- Turbo Failure Symptoms, Turbo Whistle and How Long Turbos Last
- Vacuum Leak: Symptoms, Common Sources and How to Find It
- Valve Cover Gasket Leak Symptoms and How to Fix It
- Variable Geometry Turbo (VGT) and Turbo Lag Explained
- Water in Diesel Fuel: Symptoms, Damage and What to Do
- Wheel Speed Sensor: Bad Sensor Symptoms and Testing
- Whining Noise When Accelerating: Causes and What to Check
- White, Blue or Black Smoke From Exhaust: What It Means
More guides (2)
- ACT Heavy Duty vs Xtreme Clutch: Torque and Pedal Feel
- How Long Does a 46RE Last? Is It a Good Transmission?
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