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billw 12-28-2010 04:01 PM

Dual Zone Climate control issue
I have an 05 Ram 3500. The dual zone climate control is behaving a little strange. The drivers side will blow hot on defrost only. If moved to the feet or dash it will go much cooler. The temp control responds if I move it to cool but when on hot it is warm at best. As I said before on defrost it blows hot, as the passenger side. If I put it on recirculate it blows warmer but still not hot. I have found very limited information on the dual climate control. I am not wanting to pull my dash apart without at least exploring every possible fix first.

Any help would be appreciated.

RamTech 12-31-2010 01:55 PM

You probably have a broken blend door for the drivers side.

billw 12-31-2010 03:18 PM

Thanks. Is there any way to trouble shoot that without taking it apart?

RootBeer 12-31-2010 09:29 PM

Get someone to help you. You crawl down under the dash and have them operate the controls with the engine running. Using a flashlight look for the actuator arms moving.

Have the person put the controls in each mode so you can see what the arms are doing for each one.

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