Question about 2004 Pontiac Grand Prix

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I have a 04 pontiac gp. The check engine light popped on and off while driving on the highway i tool my car straight to meineke to get a test ran, it read that I need a 050 mil light circiut malfun, 128 coolant temp below range, and a 108 manifold absolutely prepare hl. I don't know what all of that means, i need to know if any of those problem or serious. Could anybody help me out with my question? Thank you

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  • goldenbrooke Mar 21, 2011

    Thank you Trufflaseed for the advice

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The first thing to do is to check and if necessary replace the engine coolant temperature sensor, which may clear up the MAP error as well. The function of this sensor is critical to your fuel economy as well as the function and running condition of your engine.
They are very inexpensive (in the ~$10 range usually)

Posted on Mar 21, 2011

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