Question about 2004 Pontiac Sunfire

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When the car runs the check engine light comes on

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  • 38 Answers

Go to a key copier
any garage could refer you to one nearby your house

Posted on May 11, 2010

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6ya6ya
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Posted on Jan 02, 2017

j_del
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SOURCE: mechanic says camshaft sensor needs replace; however the car runs fine. Check engine light comes on sporatically.

Agreed with thundergod - I had a failed cam sensor on my Audi A4 that made no discernable difference in the car's operation, but changing it and resetting the light fixed the problem.

Posted on May 06, 2009

  • 2 Answers

SOURCE: Car running rough and stalling

I had the same problem with my dodge neon. Its your transmission slipping. My car had to have all the transmission flushed and it helped alot, but the longer you let it go, the damage could be permanent.

Posted on May 14, 2009

  • 67 Answers

SOURCE: check engine light comes on car will not run

having the same problem. If you found a solution please post :) thnx!

Posted on Dec 23, 2009

johnjohn2
  • 5763 Answers

SOURCE: check engine light come on

yes, find out whats wrong. if you want to go to an auto zone parts store they will scan it for you and give you the code or codes then write me back with the codes and the year make and model and engine and i will help you.

Posted on Feb 20, 2010

  • 62 Answers

SOURCE: Every time I fill up with gas my check engine

I don't know for sure, but I suspect the gas cap seal is leaking. Check the gas cap seal and mating surface for dirt. Buying a new cap might also be an option if you want to try that.

Posted on May 14, 2010

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My check engine light comes on? What could it be? It stays on steady. Could it be a faulty gas cap. The car runs fine.


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take it to your local autoparts store(prefferably Autozone) and tell them your check engine light is on. they will run a diagnostics free of charge. But note: the light must be lit(check engine light) when you go there or else they wont be able to run the diagnostics if the check engine light is off. this should narrow down your problem

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having the same problem. If you found a solution please post :) thnx!

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Before changing you pcm try cleaning your egr valve. remove the valve and see if its stuck in the open position if so use a small pick to clean around the spring.

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