Is this what a leaking compressor belly joint looks like?

Is this what a leaking compressor belly joint looks like?

Postby snailsafari [OP] » August 3rd 2020, 6:49pm

1999 GMC Safari AWD w/ rear a/c.

Issue is a/c not working on van. The system was completely empty, clutch not engaging. To troubleshoot I figured may as well see if the system works so I filled with 48oz R134a refrigerant. Clutch engaged and the the air blew cold. Well, cool - not cold. Within a few days or less (I don't drive it everyday) the coolant had completely leaked out and a/c clutch no longer engages and no cool air.

The bearing on the compressor started making a constant screeching sound when the clutch is not engaged, which was not there before. I would like to make that go away while I figure everything else out. I also noticed some wetness appear on the compressor after adding the refrigerant. Is this the infamous belly joint leak?

IMG_20200730_152703.jpg
After running for a few minutes

A few minutes after adding 48oz coolant to empty system. Noticed small wet area on compressor.


IMG_20200803_091055.jpg
4 days later, occasional use

4 days later, no cool air, clutch no longer engaging. Large wet area on compressor visible. Also a horrible screeching sound began.

Video Link Here is a short video file with audio showing the awful bearing sound. How can I fix this? Does compressor need replaced?
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Re: Is this what a leaking compressor belly joint looks like

Postby dcsleeper » August 3rd 2020, 7:05pm

That's yer clutch making noise, not the compressor which is not engaged.
But since it's all wet, and the clutch is making noise, yeah
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Re: Is this what a leaking compressor belly joint looks like

Postby snailsafari [OP] » August 3rd 2020, 10:29pm

Figured it was the clutch scraping. I'll see if I can put some CLP in there to help the clutch release fully.

Is anyone familiar with the compressor belly leak issue? I honestly do not know if the wetness is typical or atypical of a compressor. Usually I avoid touching a/c systems.
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Re: Is this what a leaking compressor belly joint looks like

Postby Leeann_93 » August 4th 2020, 12:09am

If there's wetness, there's a leak. It's probably oil that you see.
'05 Astro AWD vin X
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'00 Astro LS AWD - WIP
'99 Safari XLE AWD - broke
'93 AWD EXT vin W - real broke
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Re: Is this what a leaking compressor belly joint looks like

Postby snailsafari [OP] » August 4th 2020, 7:16pm

Leeann_93 wrote:If there's wetness, there's a leak. It's probably oil that you see.


Rock Auto has a kit from UAC includes compressor, drier/accumulator, orifice tube, O-Rings and PAG 150 oil. What are thoughts on replacing condenser? And thoughts on UAC parts? The system still worked so I don't think condenser is clogged. Just trying to be budget friendly.
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Re: Is this what a leaking compressor belly joint looks like

Postby dcsleeper » August 4th 2020, 7:31pm

if there was any mechanical damage to the compressor there could be metal in the condensor
It's easier to replace than clean.
try 1800radiator
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Re: Is this what a leaking compressor belly joint looks like

Postby Leeann_93 » August 4th 2020, 9:54pm

I've never used UAC. You should do a search to see if there are complaints.
'05 Astro AWD vin X
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