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12-06-2019, 07:50 PM
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Registered User
Join Date: Jul 2012
Location: henderson,nc
Posts: 89
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heater fan issues
folks ive got a issue with my 70 gmc jimmy . when I bought it , all of the ac system was gone, evaporator , heat and ac controls , etc. I rounded up all of the missing components and installed them, well when I turn on the heat and cut on the fan , it blows strong, but when I rev the engine all of the fan air goes away, you can barely feel it blow, when I go back to idle it get strong again . can anybody tell me whats wrong ?
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