The message to which you are about to reply is shown first. GO TO REPLY FORM



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

A/C issues 850 1996

posted by  KlausC on  Tue Apr 17 10:05 CST 2012
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 10:15 CST 2014
[RELATED]

This is not your American cooling system. The AC compressor will cycle on/off to keep the compressor from heating up or hurting your mpg. Unfortunately, all of the cycling will wear on the compressor clutch (what you hear going 'click' when it engages) and the clutch will eventually have to be shimmed to reduce the gap.

You are also probably low on R134a, most of these systems leak a little.

My suggestion would be to shim the compressor clutch so its clearance is about .020, once it reaches .040 the gap becomes too great to work on a hot day. The DIY method is to glue plastic bread clips to the clutch anchors, I used folded pieces of thin metal with glue. It only takes a few minutes to do after the bottom air guide is removed and no jack required unless you have sport suspension.

Once the compressor clutch is shimmed to good specs, try the AC again. If the cycling is still too fast, add a can of R143a with the engine and AC running.

Klaus
--
My name is Klaus and I am a V ♂ lv ♂ holic






USERNAME
Use "claim to be" below if you don't want to log in.
PASSWORD
I don't have an account. Sign me up.
CLAIM TO BE
Use only if you don't want to login (post anonymously).
ENTER CAPTCHA CODE
This is required for posting anonymously.
OPTIONS notify by email
Available only to user accounts.
SUBJECT
MODEL/YEAR
MESSAGE

DICTIONARY
LABEL(S) +
IMAGE URL *
[IMAGE LIBRARY (UPLOAD/SELECT)]

* = Field is optional.

+ = Enter space delimited labels for this post. An example entry: 240 muffler


©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.