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 

fuse and relay function 700 1987

uid 18083's pic
posted by  lucid on  Thu Nov 3 02:15 CST 2005
Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

If I jumper the fuel pump relay will both pumps run continuously.
• Yes -- if you mean jumpering relay socket 30 to 87/2.

If I pull fuse #1 and jumper the fuel pump relay will the in-tank pump run continuously?
• No -- fuse #1 supplies power to relay socket 30. So neither pump will run.
But if you pull fuse #11, the Main pump will run. Fuse #11 is in the tank pump circuit.

When I jumper the fuel pump relay I hear the main pump running and a sloshing sound in the tank - is this fuel being returned to the tank through the return line indicating I am successfully pumping fuel to the fuel pressure regulator.
• Yes -- that's probably the returned fuel you hear.

NOTE: This response is based on '93 wiring, but I believe '87 is basically the same as far as basic fuse/relay/pump circuits.
--
Bruce Young
'93 940-NA (current), 240s (one V8), 140s, 122s, since '63.






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.