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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Bad FPR? 200

posted by  jkordzi on  Mon Apr 7 05:13 CST 2003
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Wed Sep 12 02:43 CST 2001
[RELATED]

With the vacuum line to the FPR disconnected, the fuel pressure in my 93 245 measures 55 psi. at idle. With the vacuum line to the FPR connected, it drops to 45 psi. If I connect a hand vacuum pump to the FPR, the most it will drop to is 41 psi. After 40 minutes with the engine off, the residual pressure is 24 psi. The Bentley manual says the pressure at idle (with the vacuum line disconnected) should be 43.5 psi. I'm thinking either there is a restriction in the fuel return line to the tank, or the FPR is bad. I understand that the main pump has a check valve that regulates the flow back to the tank. Could this be bad? How do you check this? Thanks.






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.