DIY Auto Repair and Diagnosis

How to replace the timing belt and pulley yourself on the Hyundai Elantra and Kia Spectra. Step-by-step instructions, plenty of photos, and a video!

This is a guide explaining how to replace the DPF exhaust pressure sensor on the OM651 engine, which is the engine fitted to the C220, C250, E220 and E250 Mercedes cars, plus the Sprinter and Vito vans. This sensor often fails and then the car mistakenly reports the DPF filter as being full.

If your car jerks when accelerating, check these common sources of trouble to speed up your diagnostic and repair.

Clean your MAF sensor in minutes using a simple procedure. Fix rough idle problems and other performance issues.

IAC motor troubleshooting is a simple procedure on most vehicles, and you probably already have the tools for the project.

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

Find out whether your car's temperature gauge is working right, discovering key symptoms and applying a few simple tests.

Though old news, 6-speed DSG transmissions are still on the road in many vehicles. So let's look at some of the more common problems you might encounter with yours.

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.

Ten possible events that can trigger a "check engine" light in a Honda. Read the ten questions here; they will give you useful information that will help your mechanic diagnose the problem quickly.

The important function of a working PCV valve, how it works, signs that it's failing, and how to test.

Common brake problems, such as a soft brake pedal, pulling to one side while braking, or vibration while braking can have serious implications for your car's health (and your health, in turn!). Learn more about the most common brake issues and their solutions, here.

If your car stalls while driving, check the sensors that most often cause this condition.

Do it yourself (DIY) replacement of the timing belt, water pump, and oil seals on the 4-cylinder Toyota Camry and similar cars, with photos, lists of tools, and parts recommendations.

Use a digital multimeter (DMM) to test your MAF sensor before replacing it. Sometimes you won’t even need a multimeter.

A clicking starter is not a good sign, but those clicks can help you diagnose and fix the problem.