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Thread: RPM drops when turning A/C on
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07-03-2007 #2
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- Jul 2005
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Not sure about your setup. The Factory LT1 programming raises the idle speed when the AC is turned on. If it is a carb, then probably the drag of the compressor slows the engine which in turn slows the alt which lowers battery voltage.
Scot
86 Monte SS
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