Taking an engine compression test is sort of like checking your car's blood pressure. It's a quick and painless procedure ...

You've probably heard racers talking about leakdown testing as a method of verifying engine condition. Being a hot rodder, you've probably performed a similar function by using a compression tester to ...

Last month we acquainted you with a few unique procedures for using conventional tune-up devices—such as a vacuum gauge, timing light and electrical analyzer—for evaluating the efficiency and ...

Compression: An automotive term used by everybody, forever. Let's get into some detail and maybe develop a better understanding. Pressure, and more pressure: It's a must-have to produce power within ...