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Just got through with my serpentine belt swap on my 78 Camino. Everything works great, just have 1 problem, I can feel and hear the AC compressor run any time it is cycling on when the engine rpm's drop below 1100. Everything works great, and the ac is very cols, just noisey below 1100 rpms. I am running March under drive pulleys, but I also ran this set up on my 95 S-10 ( as it was the donor vehicle) with no noise at all. Any advice on what is going on? Here is a list of items used in the swap: 95 S-10 water pump, alternator,power steering pump, AC compressor and rubber hoses, a 91 Camaro "6mm" ac condensor and metal high pressure hose, new 78 Camino drier and evapartor with a 95 S-10 orfice tube. Made 2 adaptors to make the 95 134a metric hoses hook up to the standard R-12 condensor and drier. Any thoughts about why it is noisey?:dontknow:





