Mud in my Veins
Join Date: Dec 2000
Location: Memphis, TN
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Re: Is my heater switch dying slowly ?
Right: not the motor. The switch does sometimes burn out, but, more often, the resistors burn out. They are accessible from the engine compartment on the passenger side just inboard of and below the fan motor. There is a plug with about 5 wires, and 2 screws hold the plate in the duct. Both the switch and the resistor plate are probably dealer/junkyard items.
83 Custom w/95 4.9L EFI, 78 NP435, 83 NP208, 83 D44IFS 3.07, 87 Ford 8.8ABS 3.08, Michelin LTX AT 31x10.50R15