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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Auto Service Tech
Category: Car
Satisfied Customers: 29427
Experience:  GM Grand Master Technician 2007. 14 years experience.
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2003 Oldmoble Alero

Customer Question

2003 Oldmoble Alero
Submitted: 7 years ago.
Category: Car
Expert:  GM Tech (Cam) replied 7 years ago.
Hello. What is your question?
Customer: replied 7 years ago.

 

What does it usally mean when the "service engine soon" light comes on and stays on after starting up car.

Expert:  GM Tech (Cam) replied 7 years ago.
This is a fault that is set in the engine computer concerning the emission systems. Most often it is a fuel cap, but you need to get the code from the PCM. Most parts stores will scan for free. If you can get that and post it, I can help you from there.
GM Tech (Cam) and 5 other Car Specialists are ready to help you
Customer: replied 7 years ago.

 

What is the PCM

Expert:  GM Tech (Cam) replied 7 years ago.
The PCM is the computer that controls the engine.