88 GMC Sierra 1500 BRAIN TEASER - Truck Forums

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Old 06-02-2018, 09:11 PM
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Join Date: Jun 2018
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Default 88 GMC Sierra 1500 BRAIN TEASER

I charged ac with r-134, ac kicked on started blowing cold air, and tranny started whining, and slipping, turn off ac , whining and slipping stops, any ideas would help, it's crazy, I can't figure out how the ac is interfering with transmission, current backfeed or what????????
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