AC Performance Testing

The most basic of air conditioning system tests is the AC performance test. This is fairly easy to do and anyone can conduct this test, with or without certification, in most areas. It does not require breaching the AC system or any complex tools beyond a thermometer. Read more at …

Exhaust back-pressure testing

In this quick step-by-step, we’re going to show you how to do an exhaust back-pressure test on a gasoline-powered vehicle in the real world. For this, we assume you have the basic tools necessary, including either a back pressure test kit or the equivalent, including an O2 sensor adapter. Read …

Cylinder compression testing

A compression test is one of those things that is mentioned a lot in the forums, but rarely ever explained. It’s a basic diagnostic tool that every mechanic should be familiar with and is one of the go-to tests for a myriad of automotive problems. Doing a basic cylinder compression …