fuel pump.
fuel pump.
New User
Joined: Jul 2004
Posts: 21
Likes: 0
You should be able to hear the fuel pump when you turn the key on and the engine is off. With the motor running, I doubt you would (should) be able to hear it.
It could be dying, though mine died without making any unusual noises.
The fuel pumps aren't real easy to change since they're in the tank. If you don't drive far from home, you may want to just drive it until it dies before you change it and postpone the work.
It could be dying, though mine died without making any unusual noises.
The fuel pumps aren't real easy to change since they're in the tank. If you don't drive far from home, you may want to just drive it until it dies before you change it and postpone the work.
Posting Guru
Joined: Mar 2003
Posts: 1,311
Likes: 0
From: Quispamsis, N.B, Canada
Ya mine in the front tank is dead. I just bought one off ebay for about $112. Pretty good deal. I don't know how hard they are to install but I'd imagine it wouldn't be that bad. I'm just going to have a shop do it I think, cause I'm having my headers installed at the same time.
Post Fiend
Joined: Nov 2001
Posts: 14,947
Likes: 6
From: Topsfield, MA
All fuel pumps whine, some louder than others, you will hear it standing behind the truck, but from the cab you probably can't hear it with the engine running. If you have two fuel tanks, than you can just run on 1 tank if the other pump fails. I've got to replace my fuel pumps soon, for mine I will remove the bed and change the pumps from the top of the tank, rather than drop the tank. It's only a few bolts and a couple of guys to pickup the bed...pretty easy to remove and instant access to the tanks. I will also sandblast my frame and clean it up nice.
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Posting Guru
Joined: Dec 2002
Posts: 1,113
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From: Remsen, NY
I have a brand new pump in one tank of my old truck and an old one in the other. They're both loud enough to hear with the truck running, even the brand new one. I bet trucks with the I300 have pumps that are louder because they run the fuel rail at a higher regulated pressure. This truck I'm talking about has a 300. But I can hear the pumps on my 351 truck too if I walk around to the back of the truck while it's running. Both are post-'90.
I wouldn't worry about it personally.
I wouldn't worry about it personally.
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Junior User
Joined: Oct 2004
Posts: 52
Likes: 0
From: SURREY,BC,CANADA
I'd replace the pump now instead of risking needing a tow later. Just wait till the tank is near empty (much easier to handle), get a floor jack with a 1'x1' piece of plywood on the pad so as not to damage the tank then undo the straps lower it just enough to undo the lines, etc, then drop it the rest of the way. To install just reverse procedure. By the way when you change the pump be sure to replace the sock filter,it's cheap insurance and will probably extend the life of the replacement pump.
Last edited by MATT1971; Oct 23, 2004 at 05:49 AM.
Mountain Pass
Joined: Feb 2003
Posts: 184
Likes: 0
Just to add, when removing the tank be careful to remove the electrical plug on top of the tank. It has a snap in plastic clip. BTW, Advance sells the entire pump with the plastic body and the screen for $134. You use your old float/sending unit arm assembly
New User
Joined: Jul 2004
Posts: 24
Likes: 0
Originally Posted by gatesj
I have a brand new pump in one tank of my old truck and an old one in the other. They're both loud enough to hear with the truck running, even the brand new one. I bet trucks with the I300 have pumps that are louder because they run the fuel rail at a higher regulated pressure. This truck I'm talking about has a 300. But I can hear the pumps on my 351 truck too if I walk around to the back of the truck while it's running. Both are post-'90.
I wouldn't worry about it personally.
I wouldn't worry about it personally.