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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

B234F idle vacuum Q. 700

posted by  someone claiming to be Volvoman on  Sun Dec 10 09:58 CST 2006 [RELATED]

In my effort to find the cause for a gradually worsening fuel economy in my -88 GLT 16 valve I bought a cheap vacuum gauge to check for leaks. Unfortunately, the only I bought was without a scale but I still noticed something interesting:

The manifold pressure when idling is higher (closer to atmospheric pressure) than at 2000 rpm (car standing still). Is this normal? If not, what could be the cause?

The car runs fine and no error codes are set. Tailpipe CO is .7%.

TIA






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.