Question about Dual Ford F-250 F-350 Super Crew Truck 99-07 12" Cvt12 Sub Box Zx750.1 Amp

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A/c heating blower

I have a 1999 ford F-350 7.3L and the a/c heating fan works but then quits working then works again and quits. When it quits working you can hardly feel the heat blowing. what could be my problem?

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The problem is that heater fan motor. They are prone to failure when the brushes in the motor wear down. Replace it, they are about 100 USD

Posted on Feb 10, 2014

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