DIY Auto Repair and Diagnosis

Troubleshoot your potentially bad brake booster by using the simple tests in this guide to save time and money.

Common faults that cause a "Reduced Engine Power" message, and what to do about them.

Voltage-drop test your charging system circuit before condemning your alternator.

When your car is hard to start when warm, there are a few common trouble spots you can check that can help you speed up your diagnostic.

How to test your alternator's voltage regulator to avoid replacing components unnecessarily.

Diagnose clutch drag and follow some simple steps that may help you correct clutch operation.

How to bleed the brakes at home fast using a vacuum pump, plus tips and warnings.

Find and fix a vacuum leak in your car in a few simple steps using simple tools.

What do you do if your brakes are squeaking? Is it safe to drive, or do you need to stop right away? We'll show you how to fix this squeaky brake problem.

The power steering pump must be the easiest part to replace in the 1989 Chevy. It's easy to reach, an easy process, and so rewarding!

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

The GM 5L40-E is a popular transmission, but it is not without its faults. Here are some of the most common ones.

Test the throttle position sensor in a few minutes using a digital multimeter.

How to replace the radiator on your Toyota Camry. No special tools required. Plenty of photos and step-by-step instructions.

The classic 1989 Chevy Dually employs a braking system consisting of disc brakes on the front and drum brakes on the rear. The drum brakes are a little more complex than they are on today's models. Let's go over that system here.

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