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Dual zone temp. controls.. driver side all the way down, yet feels "warm" when a/c is on - compared to passenger side which is cold.. When comparing the passenger side setting to where the temp feels the same as the driver side, its about half-way.. Is there a way to check if the switch is out of adjustment? If not, any fixes or adjustments that can be done without taking it in for service?
Re: Dual zone temp. controls.. driver side all the way...
There is a side by side control switch ,one side has gone out, call parts store and ask them where it is and what it takes to replace it, i think the switches are about 100.00 for that, hope to help
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Does the system have dual controls ? One set for driver and the other for the passenger. Sounds like a dual control system- if it is then there is a problem with the controller.
An electronic motor controls the temp door. Swap right for left to confirm component failure. Actuate the passengers side and look for the moving actuator
1. If it worked fine recently, I would suspect low r134a charge. 2. If you have dual zone heating/cooling, your mode motor may be out on the driver's side. Switch the temp up an down slowly and check under the dash for the actuators to move. If one side moves but the other does not, you have found your problem.
On a w body car with a single temp adjustment control (not a dual zone) your problem should be a low refrigerant charge. Due to the design of this evaporator, a low refrigerant charge will cause the furthest areas from the inlet and outlet hoses (the drivers side) to not remove the heat from the incoming air. This allows the air on the drivers side to be outside temp but refrigerated on the passenger side. In cars with Dual Zone controls you must not only verify the refrigerant charge level, but also check the mode doors which control the air flow and regulate the temp. To check the refrigerant level do not use pressure gauges alone. Verify a proper charge level by checking the temperature of the two aluminum lines going in to the firewall of the vehicle. With the A/C set to high the temperatures should be within 5 degrees of each other. If not, then there is a charge issue. I hope this helps
I would assume with multiple people having the same problems, there should be a service bulletin on this issue. may want to call dealer with vin # to verify. sounds like a heater control issue under the dash. something i would leave to the experts for repair
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