Question about 2003 GMC Sierra 1500

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Loss of power

2004 gmc sierra 2500 6litre info says loss of power because of loss of coolant. checked coolant level and its ok temp is good but will not get above 1500 rpm.

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  • Marvin
    Marvin May 11, 2010

    What info says this? never heard of such a thing.

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  • 21 Answers

The problem could be a plugged cat convertor, or fuel filter

Posted on Dec 21, 2008

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  • 6 Answers

Tpi sensor is bad, or perhaps you have a bad connection. if you change the sensor or computer board that should take care of your problem. kind of expensive but not to bad.

Posted on Dec 30, 2008

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Does your temp guage needle drop to Zero when you switch off ignition ?

If not, your temperature transmitter is faulty, or the wire running to it is earthing out somewhere.

Hope this is of help.

Good Luck !

John.

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