I have a 1996 F350 crew cab dually. My a/c was blowing cool air, but my brother added freon to it and now it blows hot air. What could be wrong?
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Fig. Fig. 1: Plenum door vacuum motors
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The compressor is still turning over. My husband put freon in it and it ran cold for about 5 mins. He thought it could have a leak, but the a/c was working just fine before brother-in-law added freon. It blew hot air about an hour after that.
your brother overcharged it.
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