Rough Running Engines

Rough running engines are often caused by basic system problems. Often Diy car mechanics start searching for answers in the automobiles high tech areas.

In many cases, the car problem is located in the most basic principles of engine operation.

Not all engine performance problems are directly related to electronic control systems, oxygen sensors, fuel injectors or other cutting edge electronics.

Therefore a do it yourself mechanic still needs to understand engine testing procedures. These basic tests are an important part of modern engine troubleshooting.

To follow I will discuss two common engine testing procedures that should be considered when trying to diagnose lack of power or rough running engines. Many people in the car repair industry would consider these next tests a car mechanics best friend.

Lack of power | Rough running engines

Internal combustion engines rely on the compression of the air fuel mixture to maximize the power produced.

The upward movement of the piston on the compression stroke will compress the air fuel mixture within this sealed chamber making it easier to ignite and also burn completely.

An engine with low compression will not run correctly, cannot be tuned properly and will have lack of power. A compression tester gauge is used to check the cylinders ability to seal against high pressures.

This is an easy to use inexpensive tool that comes with complete instructions on how to use it. Before conducting a compression test, it is recommended to Read more