So whenever I turn on my truck heater it does not blow hot. Also it cools the temperature of the truck of from 1/2 of the gauge 210 to 1/4 of normal operating temperature. Turn heater off truck warms back up, turn heater on it cools off and just barely warm air. Normally not an issue but this morning it was chilly on the way to work and with the snow I couldn't get the windshield to defog either. I'm thinking the thermostat is stuck open. What do yall think?
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Originally posted by CabezaBlanca View PostWhen you turn it to defrost the AC compressor kicks on. When the blend door isn't working correctly you're blowing cold air across the heater core. Which in turn cools the water running through it. Which in turn cools your motor down.
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Originally posted by CabezaBlanca View PostWhen you turn it to defrost the AC compressor kicks on. When the blend door isn't working correctly you're blowing cold air across the heater core. Which in turn cools the water running through it. Which in turn cools your motor down.
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