Topic: AC Compressor noise
in Forum: C3 Cooling and Heating Systems
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A noise has arisen in my AC compressor. Its not the cycling of the compressor. Its a whine, like a bearing....but it only makes noise when the AC is on.......Is it the bearing or clutch? being that it only makes noise when the ac is on....
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It would probably be the bearing. The clutch locks up when it's on, so it shouldn't make any noise. Just one thing after another, isn't it? These old cars will drive you nuts!!!!!
Jaws79 2011-07-07 18:20:17
Barry
Lifetime MemberModerator
Duncanville, TX - USA
Joined: 11/8/2003
Posts: 20214
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/
Am-Fm/map light National/Regional/Chapter NCRS "Top Flight"
#2-1985 Bright Red/Carmine Cp.L-98/auto
Member: NCRS, NCRS Texas, Corvette Legends of Texas
The bearing spins any time the engine is running. If it is ONLY making noise when the compressor clutch kicks in, the problem is most likely the compressor. The clutch will sometimes make a noise when it kicks in if it is worn, or otherwise damaged, but it is always a grinding noise. Sorry, Dan...looks like your compressor is takin a dump on ya.
Joel Adams
C3VR Lifetime Member #56 
My Link 
(click for Texas-sized view!) NCRS
"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
Maybe a shot of oil would help, you need oil in the freon to keep the compressor lubed.
Good luck with it Dan,
Dave
Lifetime Member #116
Dave's '82 
in Forum: C3 Cooling and Heating Systems
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