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1997 Chevrolet Tahoe Question: heater blows cold

 

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mps97tahoe, Oklahoma City, OK, November 26, 2012, 13:35
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i forgot i also change the heater control valve it worked great for a few days then started blowing cold again

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  • Answer #1

    November 26, 2012, 16:02
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    check for full of radiator fluid (low fluid = no heat), if full may need new thermostat - you can check the old one by placing in freezer till cold and run under hot water and watch to see if it opens

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