Transmission School

The modern automatic transmission is by far, the most complicated mechanical component in today’s automobile. Automatic transmissions contain mechanical systems, hydraulic systems, electrical systems and computer controls, all working together in perfect harmony which goes virtually unnoticed until there is a problem. This article will help you understand the concepts behind what goes on inside these technological marvels and what goes into repairing them when they fail.

This article is broken down into seven sections:

What is a Transmission?

Breaks down in the simplest terms what the purpose of a transmission is.

Transmission Components

We try to use simple, generic explanations where possible to describe the automatic transmission components.

Spotting problems before they get worse

Shows what to look for to prevent a minor problem from becoming major.


Talks about preventative maintenance that everyone should know about.

Transmission Repairs

Describes the types of repairs that are typically performed on transmissions from minor adjustments to complete overhauls.

Transmission Cut-Away

Diagram showing the internal working parts of a typical automatic.

Transmission Tips

Tips to help maintain your transmission in accordance with manufacturers’ recommendations.