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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

1994 850 10-valve idle and hesitation problem 850

posted by  volvorecycle on  Mon Sep 24 09:54 CST 2007
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Mon Apr 7 09:43 CST 2014
[RELATED]

On this volvo it sometimes idles very good and acelerates very well, other times it idles rough(up and down) and has poor aceleration(hesitates)It can run good for whole trip, then bad the next trip. It can run good at one stop sign and bad the next one. It is a very irratic problem.
Also a note, the o2 sensor reads a constant 900 mv at idle and 2500rpm. When I snap back the throtle ( release gas pedal) the voltage go to about 300mv then go back up to 900mv. That tells me that the o2 sensor is working and the car must be running rich, which still doesnt explain the irratic running problem.

This car does have high milage 350,000k and i would suspect intake gasket, but i used accetyline and could determine a intake leak anywhere.

And tips or suggestions would be apprciated, thank-you

Volvorecycle






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.