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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

do knock sensors go bad??? 850 1994

posted by  AndyE on  Wed Dec 11 15:09 CST 2002
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

Had same problem on my wife's 1994 855 turbo. Is a common problem in Ontario due to slushy snow and road salt getting past connector seals on knock sensors and causing high resistance or intermittent contact. Solution is to reach in under intake manifold, depress retaining spring and pull each connector off. Spray some WD40 into the connector on the wire harness and work the connector back and forth several times onto the sensor. This cleans the contacts and keeps the moisture out. Did this over a year ago and haven't had the codes come back. Accessibility to the connectors is by feel only as you can barely see them. You also need small hands. Newer models apparently have a different wire harness that relocates the connectors.






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.