Question about 1985 Oldsmobile Cutlass Salon
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Posted on Jan 02, 2017
common problem, check under dash by the gas pedal if control arms are muving went selecting from ac to heat cuz this it is the control for the vents to go from ac to heat and to defrost.
Posted on Feb 23, 2009
Anybody can just change parts until the problem goes away. Answer this first: Was the underhood of the car recently serviced? and did this problem appear at that time? Perhaps there is a vacuum line broken or disconnected. The Heat/AC idepends on vacuum to actuate the servos that direct air passage. I know that the control cluster is known to fall apart, but check vacuum lines first.
Posted on May 07, 2009
You have a vacuum leak in the system that controls the vent doors. First check for cracks at the vacuum reservoir, then check the various vacuum hoses and vacuum motors for a leak.
Posted on Jun 19, 2009
If you have a late model GM car and the system is controlled electronically the blend door actuator becomes weak. When this situation occurs it will not move the air direction door inside of the heater/air conditioner plenum. in your case not to the vents Replace the actuator with new and recheck the system. i hope this helps
Posted on Jul 24, 2009
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