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



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

5-4-3 and 4-5-4 check engine codes? 850

posted by  someone claiming to be Frank on  Tue Feb 12 00:25 CST 2002 [RELATED]

They're both just misfire codes, harmless in themselves if the engine's running smoothly otherwise. Chances are good that you or someone washed or steam cleaned the engine and if so, the spark plug holes might be filled with water which then sets misfire codes.
If there's water in those holes, dry them out and you should be OK. Otherwise check spark plugs if there's doubt on their condition.

Then, clear the codes and drive it for a while. Usually the codes won't re-appear unless there's another problem, like a faulty injector for example (not too common).

Don't worry about the cat.conv either as some might suggest. I have yet to see actual TWC damage to an 850 due to misfire codes.






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.