AC Compressor noise - Forums - Official C3 Vette Registry

SPONSOR AD

Support our Vendors! | Advertise Here

Topic: AC Compressor noise

in Forum: C3 Cooling and Heating Systems

Already a Member?
Login
Not yet a Member?
Register for Free!

AC Compressor noise (1/5)
7/7/11 7:03pm

The Rook

Lifetime Member
Send Private Message

Pittsburgh, PA - USA

Vette(s):
1979 L-82, 3 spd auto, car was originally Lt. Beige currently painted Sportsman Red, Doeskin leather interior, 103,000 miles......

Joined: 12/4/2002
Posts: 600

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....

Quote

Our Sponsors help support C3VR

AC Compressor noise (2/5)
7/7/11 9:19pm

Jaws79

Lifetime Member
Send Private Message

Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
Posts: 4238

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!!!!!

Barry

Jaws792011-07-07 18:20:17

______________
"Down on the Boardwalk...

(Click image to see a larger version}

Lifetime Member #181

Quote

AC Compressor noise (3/5)
7/7/11 10:31pm

Adams' Apple

Lifetime Member
Moderator
Send Private Message

Duncanville, TX - USA

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

Joined: 11/8/2003
Posts: 20128

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"

Quote

AC Compressor noise (4/5)
7/8/11 8:51am

The Rook

1 step foward and 2 steps back.......yay me...... Wits End

Quote

AC Compressor noise (5/5)
7/8/11 11:43am

DaveM

Lifetime Member
Send Private Message

Flanders, NJ - USA

Vette(s):
1982 Black, ZZ4, Hooker Side Pipes, 3.55 Rear, Rebuilt & upgraded 700R4, All new suspension, brakes, & new Charcoal interior.

Joined: 1/27/2004
Posts: 2552

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

Quote

Our Sponsors help support C3VR