Some common locations of engine data sensors, controls and
other important components for your car or truck.

Click on the GM engine size you would like to view sensor   location and descriptions for.

Chevy Buick Pontiac Oldsmobile GMC
2.2

2.4 liter

3.1 liter, 3.4 liter V6

3.5 v6(Olds Aurora and Intrique)

3500 V6 (all others)

3.8 (3800) V6

4.0 v8

4.2 L inline 6 cylinder

4.3 liter Vortec

5.0 v8

5.3 v8
Looking for something else?
Some popular car repair articles
Check engine light - Also known as the SERVICE ENGINE SOON or SES
light. This indicates a  malfunction in the engine control and emissions
systems of your car. Step by step instructions on how  to do a simple scan
to check for
computer trouble codes. These codes give an indication as to
what  system is having a problem. View GM trouble code list.
Car maintenance - A list of some common auto maintenance checks that you
can do yourself. Check  fluid levels. Adjust tire pressures. Drive belt inspection,
etc. Pictures videos, and more.
Automotive questions -  Browse lists of some previously answered questions.
Choose your vehicle by  Make and Model and read articles our expert mechanics
have answered.
Auto repair part installation, location, how to, diagnosis, common causes and
failures.
WARNING LIGHTS

Engine Sensor Location Pictures