97 HEAT BLOWING COLD

1997 Chevrolet Tahoe

Tiny

Biggwaukegan

December, 8, 2010 AT 2:08 PM

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

FOUND 273 RELATED QUESTIONS

5 Answers

Tiny

rasmataz

December, 8, 2010 AT 2:11 PM

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

Tiny

Biggwaukegan

December, 8, 2010 AT 2:23 PM

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?

Tiny

Biggwaukegan

December, 8, 2010 AT 2:25 PM

Hers the ***

Tiny

rasmataz

December, 8, 2010 AT 2:27 PM

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

Tiny

Biggwaukegan

December, 8, 2010 AT 2:38 PM

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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