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air conditioning

  1. AC makes noise when not engaged

    LS1/LS2 Engine Tech
    Hey all, I have been trying to figure out a problem here. Just bought myself an 06 GTO, 83k miles, all original except for a pair of Magnaflow mufflers. I'm running in to a noise when the AC is turned off. It almost sounds like a power steering pump running low on fluid but that isn't it at...