Heat stuck on 97 Ranger


Old 04-01-03, 07:11 PM
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Heat stuck on 97 Ranger

Hi There

I have a 97 Ford Ranger with A/C. The heat is on constantly and it won't come off. I have done some of the diagnosis so far, the valve in the heater hose is working properly and the temperature selector is activating the servo on the plenum. My guess is the servo is not turning the flap inside the plenum to stop the hot air from coming in. Has anyone else had this problem on a Ford?

Thanks Ted
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Old 04-02-03, 09:00 AM
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Check the operation of the vacuum door inside the vehicle. Something may have fallen down in there or the cable is jammed.

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