can't get heater to switch to floor. all other selections ( defrost/vent ) work properly. where do I begin to find the problem?
Dec 19, 2012 at 11:07 AM
1990 Ford F 350 T Get Heater Switch Floor Other Selections Defrost Vent
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Maybe a problem with vacuum or the directional door has problem.
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Dec 19, 2012 at 11:59 AM
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