common car problems
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Diagnosis & Repair Help for Common Car Problems

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The following is a list of some of the most common car problems. Click on the topic for more information about how to diagnose and repair these car problems:

Engine & Driveability Problems:

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Check Engine Light On
Troubleshoot Check Engine Light
Got a Trouble Code?
Most Common Trouble Codes (and their causes)
Engine Oil Warning Light On
Engine Temperature Warning Light On
Engine Overheating
Coolant Leak
Car Won't Start (Possible Causes & Quick Checks)
Troubleshoot Anti-Theft System
Engine Won't Crank or Start
Engine Won't Start, No Fuel (Bad Fuel Pump?)
Engine Won't Start, No Spark
Engine Idles Rough or Misfires
Engine Idle Surge
Engine Vacuum Leak
Engine Stalls
Engine Hesitates or Stumbles When Accelerating
Engine Pings or Knocks When Accelerating or Lugging
Poor Fuel Economy
Engine Noise
Smoke In Exhaust
Failed Emissions Test
Warning Lights On

Battery, Charging & Electrical Problems:

Battery Keeps Running Down
Battery Testing
Starting & Charging System Troubleshooting
Charging System Checks (alternator testing)
Starting & Charging System Service
Electrical & Wiring Problems
Bad Wiring Connections (How to Check)
Blown Fuse
Headlight Problems
Power Windows Won't Work
Electronic Instrument Cluster Problems
Fuel Gauge Problems
Anti-Theft System Problem or Light Flashing
Cruise Control Problems

HVAC Problems:

Air Conditioner Not Working
A/C Not Blowing Cold Air
A/C Systems Needs Refrigerant
Automatic Climate Control System Not Working
Heater Not Working

Brake Problems:

ABS Warning Light On
Brake Warning Light On
Brakes Noisy
Brake Pedal Is Low
Brake Pedal Feels Soft & spongy
Brakes Pulsate or Vibrate When Braking
Brakes Pull To One Side When Braking
Power Brakes Not Working

Steering Problems:

Steering Pulls To One Side, Car Does Not Steer Straight
Steering Feels Loose
Power Steering Feels Stiff, Takes Extra Effort To Turn

Tire & Suspension Problems:

Flat Tire
TPMS Warning Light On
Tires Wearing Rapidly or Unevenly
Tire Vibration
Car Rides Rough, Bouncy, Bottoms Out On Bumps
Wheel Bearing Noise

Transmission Problems:

Automatic Transmission Slipping
Automatic Transmission Problems
Clutch Problem (Manual Transmission)

Related Articles:

Car Repair Advice
What Goes Wrong With Cars (and When)
Most Often Replaced Car Parts
5 Car Noises You Should Not Ignore
5 Warning Lights You Should Never Ignore!
5 Ways To Save Money on Auto Repairs
5 Things Your Car May Need Now!
Look up Technical Service Bulletins & Recalls for Your Vehicle
OEM Automotive Service Information Websites & Access Fees
Trouble Code Help
Repair Advice: How Much Should It Cost To Get Your Car Fixed?
Repair Advice: How To Avoid Auto Repair Fraud Scams & Rip-Offs
Find An Auto Repair Shop
How To Buy a Good Used Car (and NOT a Lemon!)
Auto Accidents: Mechanical Problems That Increase Your Risk

AA1Car Library of Automotive Diagnosis & Repair Help Articles

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