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Old 08-20-2021, 02:50 PM   #2
body bolt
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Join Date: Oct 2020
Location: Albuquerque, New Mexico
Posts: 474
Re: AC compressor chatter

Quote:
Originally Posted by Cesar Diaz View Post
I replaced a 1 year old AC compressor on my 72 c10 added the required PAG 46 oil, pulled a vacuum, verified no leaks, drew a vacuum for 1.5 hours more then added R134, at one point my scale got stuck and I ended up adding about a 1/2 lb more of R134 then I should have.

While loading the R134 all went smoothly. when I went to drive the care with the AC on it started squealing loudly so i shut off the AC and when I got home checked and the Compressor is intermittently locking up.

Could it just be that the compressor is bad or is the extra R134 the issue?
Do you think you may have overcharged?
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