electric fuel pump always running?
Thread Starter
|
Freshman User
Joined: Dec 2012
Posts: 32
Likes: 0
electric fuel pump always running?
I just bought a 96 EB with 351. I started it up this morning and heard what sounds like a high pitched whine, coming from the rear of the truck. almost like an electric motor. any suggestions? as soon as it stops raining, I thought I would pull the fuel pump relay and swap it for the ac relay to see if the noise stopped.
Postmaster
Joined: Jan 2013
Posts: 3,512
Likes: 3
From: Panama City
As to how loud it is I can not say. Any vehicle I have ever owned with fuel pump in tank was audible as far as I can remember. As I stated before keep fuel in tank at least 1/4 to help pump run cool. I cant speak as to the truth of whether this actually adds to longevity, but it is something I have heard over the years and it makes sense. Maybe someone who is a Pro mechanic will chime in here and help you out. I am just a backyard mech who keeps his own junk running.If it has points,plugs,carb and distibutor I can work on it. New computer controlled stuff I sometimes have to get a pro to diagnose.
Elder User
Joined: Feb 2008
Posts: 999
Likes: 1
From: Davison, Mi.
Every Ford's in-tank fuel pump for fuel injection that I have heard, and I do hear most of them turn on when I turn the key to run, shuts off after a predetermined amount of time if the computer doesn't sense that the engine has started.
It's a safety feature.
If yours continues to run even though the motor hasn't been started, something is wrong.
It's a safety feature.
If yours continues to run even though the motor hasn't been started, something is wrong.
Thread
Thread Starter
Forum
Replies
Last Post
Coverbrooke
Fuel Injection, Carburetion & Fuel System
7
Apr 13, 2012 06:54 AM
aaronlockhart
1987 - 1996 F150 & Larger F-Series Trucks
3
Dec 31, 2008 06:23 AM
