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I have a 1989 mustang lx with a 4 cly,when i turn on the ac I smell a burning smell and I track it to the fan control switch under the dash, the large orange wire with a black stripe is the culprit, it is hot and when I remove the module the contact is burnt, I tried another module with the same result. The radiator fan runs, the ac clutch engages and produces cool air, but this wire gets red hot, could it be a short somewhere in the wiring? any help appreciated
thanks
Doug
 

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idk im realy lost that sux tho...check all ur grounds..do u know if the car was taken apart b4 like the dash or the blower??..just give it a good look at all the wires..and wut about when the heats on it still get hot??
 

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Get access to a wiring diagram, check what the circuit should have for powers, grounds, connections, and check amperage flow with a multi meter
 

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Go to your ford store and buy the fan switch up date kit and plug and wire it in. Problem solved.
 
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