Question about 1998 Chevrolet Cavalier

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Temp gauge I have a 98 cavalier and the temp gauge keeps going from the middle to below cold and the engine light came on and the code was coolant temp high input,I replaced the sensor in the coolant line and it still does it.

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  • Anonymous Jul 12, 2008

    i have same problem and replaced thermoal stat and still doing it...

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The sensor you replaced was the ECT (engine coolant temp)? Check your coolant level and air in the lines. Do a coolant pressure test to make sure the cooling system holds pressure, If it doesn't, you may have a head gasket problem.

Posted on Jun 11, 2008

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