Mechanics

CLIMATE CONTROL

1995 Buick Lesabre

I have a 95 buick lesabre with electronic climate control. It starts to blow hot then turns cold. I've change the thermostat and heater core. I've found the the mixing door starts open then goes closed. What controls the mixing door to open and closed? Is there a sensor that is bad?
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Jvnkeller
December 12, 2010.



If this is the control that you set the temp it has to be scanned for bad sensors. The sensor could be affecting your actuator for the mixing door.

Hmac300
Dec 15, 2010.