Check engine light

Asked by Adelqs35d Sep 06, 2015 at 03:55 AM about the 2007 Hummer H3 4 Dr H3X

Question type: General

Check engine light was on during my
normal driving..why

9 Answers

7,885

there can be many reasons. if it is driving normally and there are no other lights or it is not running badly it might be a small problem or even not a problem at all. more likely a EVAP code but it is best to have it checked. if you go to napa, auto zone, orilies, pep boys or really any auto part store they can check the code for free. if you let us know or write me with the code I can help you through it.

8 people found this helpful.
90

Hi, I'm experiencing the same. The code P0455-00 relative to the Evap is what I received when a diagnostic scan was done. It was cleared and stayed gone for 2 days. It has since reappeared. What direction should I take to resolve this matter?

9 people found this helpful.
30

Check gas cap first then look for rotted or broken evap lines if all that checks replace evap solenoid at canister

3 people found this helpful.
110

Yes still having check engine light. Replaced the original GM gas cap and check lines for leak and still nothing. Do I have to reset it somehow or is it a fuse?

11 people found this helpful.
20

Can a leaky sun roof cause ur engine light,stability light and to come on in my h3 2007 hummer from the water ?? Water also comes out of my phone speaker over driver seat.

2 people found this helpful.
30

What is this red indicator on 2007 H3, searching online for days, can’t find it, believe it or not. The check e fine light is always on due to gas cap, changed it three times, confirmed with different garages the code that comes up is for gas cap. Can anyone please tell me what the top Center light is???

3 people found this helpful.
10

The upper light is for low tire pressure.

1 people found this helpful.

Your Answer:

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