MY ENGINE HAS A CHECK ENGINE LIGHT AND POSSIBLE ...

2003 Chevrolet Trailblazer

Tiny

jxg522@aol.com

January, 7, 2011 AT 8:13 PM

My engine has a check engine light and possible a vacuum leak, how do I fix it?

FOUND 17085 RELATED QUESTIONS

2 Answers

Tiny

rasmataz

January, 7, 2011 AT 8:15 PM

Have the computer scanned for code/s-you have a problem within the engine management system that caused the CEL to turn on-This is your starting point of diagnosis, finding out what's going on.

Get back with the code/s-Vacuum leak?

Lean fuel condition could be caused by one of the following below: 1. Vacuum leaks
2. EGR and PCV valve.
3. Low fuel pressure.
4. Dirty fuel injectors.
5. Mass Air Flow Sensor.
6. Oxygen Sensor.

Tiny

heinrich101

January, 12, 2011 AT 5:59 AM

Ways to look for vacuum leak: 1. On this particular car/suv, it does not have too many vacuum lines, but make sure they are all disconnected and seal, (meaning to can disconnect them and seal with rubber caps)
2. The intake manifold is made of plastic, they are known to leak from there

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