Question about 2001 Chevrolet Blazer

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Heat gage goes from normal to hot and back

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Sounds like your thermostat might be sticking. A sign it's wearing out.

Posted on Sep 06, 2008

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F150 4.2 temp. Gage pegs to h


SOUND LIKE THE TEMPATURE SENSOR IS BAD REPLACE IT WITH ONE THAT THE CAR RECOMEND. IF THE CAR ENGINE IS HOT :CHECK THAT THE FAN IS PRODUCING ENOUGH AIR THRO THE RADIATOR IF OK THEN CHECK THAT THE THERMOSTATE IS NOT THE FOULT.

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HELLO I HAVE 1995 GRAND PRIX WITH THE 3.1 MOTOR. MY PROBLEM IS IM NOT GETTING NO HEAT. THE TEMP GAGE GOES TO NORMAL WHEN ITS IDELING WHEN DRIVING GET HOT THEN WHEN I PUSH ON BRAKE OR COME TO A STOP THE...


check the fan and water pump one of these is possibly ur problem when ur at idle there is no heat load and the radiator can dissipate that when ur driving causes more heat if fan isnt working the car wont cool same if problem is water pump at idle pump may be able to move some of the hot anti-freeze but when driving may not be pumping it thru radiator to cool

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