Question about 1985 Ford Mustang

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No power to the heater blower

I have an 1985 ford mustang 5.0 5 sp,I have checked all the fuses and there is no power to the heater resiste of any kind,could there be a bad switch at the controls? This has been going on intermitinly for the past 6 months or so,ths 2 prong plug to the blower is chard on the black wire,Thank you,Walt...

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  • quick_paws Dec 16, 2008

    As I found it to be the resister, after checking farther in to tne system the blower,the blower lead and the switch were ok. thank you for your help.



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Walt, it sounds like you have found your problem, this is common when the motor starts going bad. This cause it to pull to many amps and the black wire has gotten hot, most probably causing the plug to have a bad connect. I may not full understand your question but if there is not power to the resistor then the switch could be bad also. Very possible the switch could be bad, in that case pull switch and check for proper operation with a voltmeter. The resister should be checked the same way. Always when checking a circuit make sure you have power at the switch to eliminate the possibility of a bad fuse. I hope you find this helps.

Posted on Dec 15, 2008

  • David Johnson
    David Johnson Dec 16, 2008

    Glad I could help you, and thanks for the feedback



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