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2000 chevy heater issues?

By trapperman83
April 29, 2014 in 1999-2013 Silverado 1500 & Sierra 1500

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trapperman83

Posted April 29, 2014

Posted April 29, 2014

It seems when my heater knob is turned all the way to hot it blows like the knob is half way between cold and hot? It was working fine I noticed it when I turned the cold air on then turned it back to hot and it didn't get hot then I shut it off and started it later and it was blowing hot again, thermostat is working, I changed cab filters, could it be the switch ? Or possibly one of the doors not opening all the way? Thanks

Senior Enthusiast

8.1HD/ALLISON

Posted April 30, 2014

Posted April 30, 2014

Most probably the temp blend motor.

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Enthusiast

trapperman83

Posted April 30, 2014

Author

Posted April 30, 2014

Where is this located? Is it what opens the door for the air ?

Senior Enthusiast

8.1HD/ALLISON

Posted April 30, 2014

Posted April 30, 2014

Electric motor under the dash that moves temp door.

Sent from my LGL86C using Tapatalk

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trapperman83

Posted May 1, 2014

Author

Posted May 1, 2014

Got it thanks

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