Question about Pontiac Grand Prix

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The check engine light is on , on my 2004 grand prix. it went off for half a day,now its back on . what could be the problem?

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You will have to have the computer scanned to find out what caused the check engine light to come on.

Posted on Dec 29, 2010

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My check engine light is on, and today my temperature gauge stopped working and we have replaced the engine coolant sensor and the connector and temperature gauge still not working. PLEASE HELP


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2004 Pontiac Grand Prix, check gas cap


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Apr 04, 2009 | 2004 Pontiac Grand Prix

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Check engine light came on along with check gas cap


Did u have engine codes scanned? If not, have it done, as it may indicate the problem. Let me know. (most parts stores will scan for codes free) .

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