Question about 2006 Chevrolet Silverado 1500 2WD

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I have a 2006 Chevy Silverado and the service engine light comes on for a few days then goes off. Where do I start to find the problem. Cannot go to Auto Zone to get the codes read in California

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You can go to auto track or auto zone they can check it free....only when the light is on then they can tell you if they have the part and may show you how to put it on

Posted on Oct 03, 2009

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Try a new gas cap first. I say this due to the fact that the light is intremitant, and the fact that the computer checks for vacum to the the tank periodicaly. The gasket on the cap may be just at the stage were it seals most of the time, but not all of the time, depending on temp and how tight you put it back on. With out codes of course this is just a **** shoot. You can always buy a DIY code reader for up to a couple hundred bucks.

Posted on Oct 03, 2009


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