97 deville wont blow hot air

Asked by Feb 11, 2016 at 12:27 AM about the 1997 Cadillac DeVille D'elegance Sedan

Question type: Maintenance & Repair

got a 97 cadillac deville  recently changed
heater core  lines pump radoator all cooling
systrm is new but recently stopped blowing
hot air from one day to the next just stoped
blows air but all cold

4 Answers

70

Did you replace your thermostat?

72,145

Probably the HVAC blend door actuator for the climate control, if you had heat after replacing all that, but yes as Met is asking is if the thermostat was replaced also?

Yeah i also replaced the thermostat

72,145

There is a Climate Control Vacuum valve, or a Air Conditioning Air Inlet Door Actuator that could be bad. One of them just letting in outside air.

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