Volvo AWD 850 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 1/2003 850 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE Replies to this message will be emailed.    PRINT   SAVE 

Freon charge? 850 1994

Dear Dave:

My AC noise also appears on a fast acceleration or when driving over 60 MPH. The noise is a buzzing or resonating and only starts when the compressor in engages and while the car is in motion (at highway speeds). I can idle the car in park at 3,000 rpm and compressor will churn away with out a noise. However, if I am driving down the highway an the compressor engages the buzzing noise starts right in and stops when the compressor disengages. The car is does not make a sound at highway speeds with the AC off. The sound appears to be coming from the drivers side near the relays. I have shook every piece of metal I can get my hands on to find a loose shield or cover, but I still can find the source.

I had the receiver/ dryer replaced recently and the car still has a full charge. The AC is also very cold (best AC in a car I ever had aside for the noise).

I will be watching the AC whisling thread closely because their AC noises starts when the car is a speed.

Thank you for responding

Robert






THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New AC cut out relay or switch when accelerating? [850][1994]
posted by  rborchers  on Sat Jun 29 14:30 CST 2002 >


<< < > >>



©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.