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Old 05-08-2015, 09:55 AM   #3
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AJR is a jewel in the roughAJR is a jewel in the roughAJR is a jewel in the roughAJR is a jewel in the rough
Join Date: Sep 2001
Posts: 520

1996 SL2
2002 L-Series 2.2L Sedan
Default Re: whine/groan from new AC Compressor

Originally Posted by fdryer View Post
Your descriptions seem to be about possible lack of compressor oil. Were guidelines followed to fill the new compressor with fresh PAG oil equivalent to old oil poured out the old one?
Yes, everything was done to specs for that job. However, today brought some new light to the situation. Yesterday afternoon was very hot and the noise I described was loud. I called the shop and they told me to bring it in this morning.

This morning it's cool here and the compressor did not make any noise for most of the way there. Cooling was good. By the time I got there, it was making a little noise, but nothing like yesterday. So it seems to be heat related.

They checked the pressure and everything was spot on, so at least there are no new leaks. Summer is just starting, so we agreed to wait until it gets hotter out to see what shows up.

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