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 Longevity 1800 1973

posted by  jrk on  Tue Feb 26 18:47 CST 2002
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Jun 29 16:17 CST 2001
[RELATED]

I have had trouble starting my car lately. In trouble shooting it,
I have found that the fuel pressue at the rail pops up to about 30PSI
when the fuel pump initially runs before cranking the engine and then immediately drops back to near zero when the pump stops. It pops back up to about 30PSI while the engine cranks and stays there when the engine is running.

Let's assume the 30PSI is normal (may be an inaccurate guage or I may need to adjust it a bit).

1. Should the pressure regulator maintain the pressure in the rail at about 28 PSI even when the pump is not running or is my regulator bad?

2. I have checked all the sensors and checked the function of the intake air bypass valve (controlled by the engine heat). They seem fine. I have to crank it 3-4 times to get it to start and even then, it does not run at the higher cold start RPM it used to (where-in as it warmed up, it dropped in speed as the by-pass valve closed down). Ideas?

jrk





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.