GMC Yukon XL 1500 Problem Report
GMC Yukon XL 1500 Rattling Noise From AC Belt Tensioner
A rattling noise may develop from the AC belt tensioner. This can be caused by an internal fault with the AC compressor, AC performance may also be diminished when this occurs. Our technicians tell us that replacing the ac compressor will commonly correct this concern.
My A/C my tension pulley continued to vibrate at low speeds until it finally broke. I replaced it to only have it happen again. The root of the problem was the A/C compressor had sludge in it which caused it to put harmful strain on the tension pulley. I replaced the compressor, drier and orifice for under $350 (DYI. You can purchase a new kit online for about $225 (all items included. Be sure to replace the orifice and clean out the lines, so that no debris finds its way back to you new compressor. YouTube has a great series of videos on how to change your A/C compressor, drier and orifice. you can save yourself at least $700 by doing it yourself.
Also, have a shop evacuate your system of any coolant. I had my system evacuated and refilled for under $100 at a Valvoline Oil change facility (included in the $350). This is a common problem with this vehicle, although I can't complain, 195K is a lot of miles. I bought my Yukon new and have enjoyed every mile and wouldn't hesitate purchasing another one. - Visitor
Not cooling. Rattling noise. Bad ildle surge when compressor comes on. Not fixed yet, waiting for mechanic to have time. - Visitor
Ac rattling when RPMs are climbing from 1500 to 2000. Replaced tensioner twice, belt 3 times, and clutch 1 time. Looking to replace the compressor next. - Visitor
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