Related Resources:

How the Engine Works.
A basic explanation of the internal parts of an engine, what they do and how they work.

Engine Testing With A Vacuum Gauge
Vacuum gauges have been a valuable tool to mechanics for years. Even with modern computer controlled engines a vacuum gauge is still a valuable tool for diagnosing engine and transmission problems.

Troubleshooting Engine Problems
Find possible causes of engine problems by the symptoms your car is displaying.