Question about 2002 Chevrolet Avalanche

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GUAGE SHOWS HOT

THE TEMPERATURE GUAGE GOES TO HOT WHEN WE ARE GOING UP A HILL AND THE LIGHT LOW COOLANT COMES ON THEN THE LIGHT CHANGES TO RED AND THE GUAGE GOERS ALL THE WAY TO HOT.....THE TRUCK IS NOT ACTUALLY HOT OUR INFARED TEMPERATURE SENSOR SAYS ITS 190 JUST LIKE OUR 08 CHEVROLEY TRUCK. WE HAVE REPLACED THE THERMOSTAT, CRANKSHAFT SENSOR, CLUTCH FAN, WATER PUMP ABOUT 1100.00 WE REPLACED HEAT SENSOR ON THE BLOCK. THE TRUCK .STILL SHOWS HOT CHEVROLET SAY THE GUAGE IS OPERATING PROPERLY.......WHATS UP

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  • CMLOVESGOD2 Nov 09, 2008

    THANK YOU I WILL THE AVALANCHE IS A 2002 4X4 2500 WITH THE 8.1 L ENGINE...IT ONLY HAS 50K MILES IT IS OUR SNOW PLOW TRUCK IT HAS A SNOW BLADE ON FRONT IN WINTER ABOUT JANUARY FOR US...

  • yadayada
    yadayada May 11, 2010

    I think you have a leaking head gasket and the system is getting air pockets in it, Have the cooling system checked for hydrocarbons.

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  • Master
  • 1,450 Answers

Is it ever low in coolant? i agree with emissionwiz sounds like your getting airpockets do you have heat when this starts?

Posted on Nov 25, 2008

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