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 

Engine Vibrations 700 1990

posted by  AppleTech on  Sun Dec 28 19:29 CST 2008
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Sun Nov 13 14:40 CST 2011
[RELATED]

I've been troubleshooting an issue on my Dad's '90 740 Turbo wagon - the car has developed a low end rumble and high end vibration. The low end rumble happens when the car is in gear (D) and idling - if you pull into N, the rumbling stops.

The vibration occurs when accelerating and once the engine hits 2500-3000RPM and gets worse as the RPMs climb (also happens when revving in N, although not as prominent). A local mechanic suggested a worn mount, so we just replaced both engine mounts today and the rumbling is worse (likely due to stiffer motor mounts transferring the vibration into the frame). The vibration is not horrible, it just sounds like something is out of balance. My initial thought was perhaps an issue with the turbo? The car's performance seems to be mildly affected - not very noticeable, but I can feel that it is not running as it should.

Any thoughts on what could cause this?

Thanks,
Phil






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.