New AC compressor pretty much seized 3 weeks after install

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IADC43

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about a month ago now I finally got around to installing my new AC parts on my C1500 with a 350 engine. Every single piece of the AC system was brand new. All of it.
I took it to a shop that was recommended for good work to have it vacuumed to test for leaks, add oil, and charge the system. It worked perfect.
After a couple of weeks, once in a while, the belt would squeal on start up, it was a dayco, so I cleaned the pulleys and changed out that brand new belt for a brand new Gates belt. That didn't fix it.
It quickly got to the point that the belt would squeal as soon as the clutch was engaged and the compressor would turn a little and stop then turn and stop.
I took it in and the guy loosened the belt and turned the compressor over with a socket and it was really hard to turn, that is why the belt was squealing.

My question is this, what would be the common reason for a compressor to go bad that quickly?
My first guess is that they didn't add oil to the system, but I know they would have.
Is it likely the 134a overwhelmed it?
I am scheduled to take it back in to be torn apart and repaired, what is a better compressor to get? This one was a R4 type remanned by SMP, purchased from a guy who bought it from Rock auto.
 

someotherguy

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I had a NAPA "Cold Power" new, not rebuilt, R4 go bad on me pretty quick, same symptoms. Replacement was bad right out of the box, lot of resistance to turning. Got another, it lasted a while, crapped out...

Figured if I was spending $300ish for a new compressor it would be good. Nah. The R4's are junk to begin with and bringing the aftermarket into the mix doesn't help them.

Strongly suggest you look into Sanden conversion kits.

Richard
 

someotherguy

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I've seen those; haven't used one myself...but the Sanden is the go-to compressor these days.

Richard
 

SAATR

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Go for it. I'm generally leery of the "Sanden-style" compressors, as they are Chinese knockoffs of questionable quality. But, given your issues with the reman R4 and my own experience with R4 compressors, I would say your chances of a good repair are better with that conversion kit.
 

ram1220

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I learned my lesson about 4 years ago. I put a reman from OReilly's in my 90 GMC 5.7l and it lasted about 15 minutes. I got discouraged after that and just took it back to OReilly's for a refund. I've been driving without A/C here in Texas the past 4 summers. Maybe one day I might tackle the job again when my neck, shoulder, back don't hurt so much. Lol
 

someotherguy

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If you do some hunting you might be able to get a Sanden together with an end cap that will accept the GM hose set. I was working on this when I still had my '94 and gave myself a headache trying to determine which cap was going to work. There's one that LOOKS like it will work but I believe the ports are backwards. There's another that I am pretty sure makes it a drop-in in regards to the hose; you still of course would need the simple adapter brackets for the compressor. IMO if this could be done it would be best; you could pick and choose your brand/vendor for the compressor, and stick with the OEM hoses.

Richard
 
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