97 TAHOE HEAT BLOWING COLD

  • Tiny
  • Biggwaukegan
  • 1997 Chevrolet Tahoe
  • V8
  • 4WD
  • automatic
  • 1,200 miles

1st timer here so be easy on me. 97 Tahoe with new radiatior, thermostat, motor and waterpump. Heat is blowing cold but motor is not overheating. Both hoses going into firewall are warm but not hot. Could this be my heater control valve? Heater door actuator? Help me please its like 10 degrees here in chicago and Im cold

Wednesday, December 8th, 2010 AT 2:08 PM

5 Answers

  • Tiny
  • rasmataz
  • Member

If it has a heater control valve check it-and also retest the thermostat and check the air blend door-

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Wednesday, December 8th, 2010 AT 2:11 PM
  • Tiny
  • Biggwaukegan
  • Member

How do I check the heater valve without replacing it? Its like$11 so Ill just replace it. Gonna swap out thermostat too. Would the air blend door cause cold heat?

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Wednesday, December 8th, 2010 AT 2:23 PM
  • Tiny
  • Biggwaukegan
  • Member

Hers the ***

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Wednesday, December 8th, 2010 AT 2:25 PM
  • Tiny
  • rasmataz
  • Member

If its stuck in the cold position-check the door actuator/vacuum

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Wednesday, December 8th, 2010 AT 2:27 PM
  • Tiny
  • Biggwaukegan
  • Member

If the blend door is stuck in the cold position? Please be more detailed with your responses. Sorry but I need details so I can get this fixed

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Wednesday, December 8th, 2010 AT 2:38 PM

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