Volvo RWD 200 Forum

INDEX FOR 2/2026(CURRENT) INDEX FOR 11/2000 200 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

squeaking sound from compressor 200 1990

posted by  someone claiming to be zakir on  Wed Nov 22 14:44 CST 2000 [RELATED]

I recently cleaned my engine with the engine degreaser stuff. sprayed it on while engine was hot, waited 15 mins and rinsed it iff. ever since that I have been hearinga squeaking sound. I can't pinpoint exactly where , but it seems to be coming form the power steering pulley, alternator pulley area .. maybe even crankshaft pulley.

got a response from Mark Reitman , cleaned the belts .

well, I washed it off by spraying a stream of water at the alternator, crankshaft and compressor pulleys. Did not help.

I later realised the squeaking sound is coming from my ac compressor and it goes off when I turn the ac on! I verified with a wooden rod to pick up the sound, so I am sure it is not from the alternator or crankshaft or power stteering.

Also when the ac goes on, after a couple of seconds I hear a sharp click, and then the compressor comes on and the squeaking sound goes away. I did this a few times and the pattern is consistent.

it is a one year old compressor, also odd is why the sound comes on when the compressor is off!!

any ideas ?







  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    Re: squeaking sound from compressor 200 1990

    posted by  someone claiming to be Gene Stevens on  Wed Nov 22 18:46 CST 2000 [RELATED]

    That noise usually happens when the compressor clutch air gap is too small. When the a/c is disengaged, the speed difference between the pulley and the clutch plate is crankshaft speed (multiplied by the crank:compressor pulley ratio). When it's engaged, the speed difference is zero - same time as your noise disappears.

    Look carefully (with engine stopped) for something odd in the area near the gap of the pulley (the only moving part while tha a/c is off) and the clutch (the stationary disc in front of the pulley).

    Also check to be sure nothing is hitting the belt due to worn insulator bushings, where the compressor shifts when engaged causing the belt the belt (and noise) to clear.






<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.