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Re: [GMCnet] yet another dash AC question [message #274492 is a reply to message #274477] Sat, 28 March 2015 10:21 Go to previous messageGo to previous message
KB is currently offline  KB   United States
Messages: 1262
Registered: September 2009
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Senior Member
I did add oil. The new aluminum compressor came with PAG oil, so as Emery suggested I drained it out
and rinsed a couple times with mineral oil before adding fresh oil.

Unfortunately, when the compressor ate the smaller of the two hoses, it dumped a lot of oil with the charge.
I found reference to a GM service bulletin somewhere that said in such a circumstance, add 3-4 ounces of oil
with the new hose. Don't know if that's good or bad advice, but it's moot now since I had to dump that charge to get
at the expansion valve. Since I don't know how much is in the system now, may have to take it all apart again to flush and measure.

thanks,
Karen
1975 26'
 
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