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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Drivability issues - lean - O2 sensor or fuel pump? 700 1991

posted by  Bonzo on  Thu Sep 26 11:53 CST 2013
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Aug 29 15:50 CST 2014
[RELATED]

740 NA sedan w/ Regina. Cold start have to turn over twice to start. Runs poorly for a minute or 2. Rest of day tends to run OK, especially above 20 mph or so. Sometimes runs poorly from dead stop up to 20 mph (almost lead to 2 accidents - I have to give oncoming cars a lot of space in case it does hesitate).

Took it to Volvo-only repair shop (not dealer). They cleaned throttle body, replaced fuel filter, replace temp sensor. Especially first 2 needed done. BUT $300 later problem is still there. I picked up car after 1 week (they said it's hard to test because problem is only when cold - like sitting overnight). They said they were going to next look at O2 sensor or fuel pump, that the problem is running lean. I'm thinking of starting by replacing one - which one? Other suggestions?






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.