DIY Auto Repair and Diagnosis

To fix performance issues, check the intake air temperature (IAT) sensor in your car using a few simple tests.

Most people only go into an auto parts store when they have an emergency. There are a few things that you should know that will save you money and keep you from being taken advantage of.

Check for cooling fan problems using this simple guide and tips.

This guide helps you diagnose turn signal problems when one or more of the signal lights refuses to work.

Some people spend hundreds of dollars on car repairs when their check engine light is on. I use this low-cost diagnostic tool to see the vehicle’s OBD error codes.

Diagnose the most common problems with your car's starting system without special equipment or knowledge, based on the symptoms described here.

How to test your vehicle yourself to investigate common and not-so-common reasons for a sluggish engine.

Handy tips to troubleshoot your dead or dying battery to know if it is still can be used or it's about time to get a replacement.

If your car’s ignition system has no spark, a few simple tests can help you locate the fault.

How to tell if your MAP sensor is bad and how to test it in your garage.

If the air conditioning system in your car blows out hot air instead of cold, most likely there is a leak where freon is escaping. A few quick checks can often determine the problem. Recharging the AC system with freon is a waste of money unless the leak can be found and fixed.

If your car stalls at stops, check the most common sources of trouble.

How to troubleshoot a mass airflow sensor in a few simple steps. What to look for, and how to interpret your results.

If your car loses power going uphill, check these common potential faults.

Here are the most likely reasons for bad clutch performance, a noisy clutch, or strange behavior by the clutch pedal. Look for your symptoms here.

Find that parasitic battery drain that's causing your car battery problems whether you have a newer or older vehicle model.