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



 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

Fuel pressure bleed down 700 1990

posted by  someone claiming to be Guy Prichard on  Mon Nov 17 07:14 CST 2003 [RELATED]

My 1990 740GL (330,000 miles) with B230F engine is hard to start. By that I mean that the engine cranks for 4-5 seconds before it starts. In contrast my 2003 S60 fires in an instant. I put a fuel pressure guage on the injector rail and it hangs in at a steady 40 PSI at idle. When the engine is turned off the 40 PSI bleeds down to nothing in less than one minute. When I go to re-start, the engine doesn't start until the fuel pressure builds back up to 40 PSI. By pinching various fuel hoses I have determined that the pressure is bleeding off through the in tank pump. My understanding is that the pump in the tank has a "check valve" that is supposed to prevent this from happening. Is this true or is there a check valve somewhere else in the system that I don't know about that has failed.

Thanks for the help.

Guy P.





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.