A/c compressor sound?? - Chevy and GMC Duramax Diesel Forum
11-16 LML Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 1 (permalink) Old 01-24-2020, 07:43 AM Thread Starter
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Join Date: Jan 2019
Posts: 2
A/c compressor sound??

[2015 Dmax] So, the other day I have a chirping sound coming from the engine compartment that comes and goes. It stays away if defroster is off so I’m thinking maybe compressor bearing?? Then today I get a more loud whine that vibrates the truck. Again, goes off when I turn off the defroster. It apparently has a mind of its own as I can not force the sound to replicate. Thoughts? I took a video but apparently can only upload photos.
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