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2000 Tahoe 5.3 stalls at idle w/ A/C on
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Question
ChevyPuttPutt
My 2000 Tahoe, 5.3 Vortec, idle drops with A/C on. Sometimes it will drop to 300-400 RPM, and even go dead. Idles fine with A/C off, and otherwise runs great. Vehicle has about 85K miles. My question is this: What controls the idle step-up when A/C compressor comes on? Is it the idle motor on the side of the throttle body? Can it be adjusted, or does something need to be replaced?
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