fuel pump whine
fuel pump whine
Posting Guru
Joined: Jan 2001
Posts: 2,358
Likes: 3
From: Nebraska
My beater 95's rear tank is REALLY loud. When I bought it, it was the only one working, and who knows how long it's been that loud. I don't worry one bit about it. Like tgil said, that's why there's two. 
Senior User
Joined: Feb 2007
Posts: 224
Likes: 0
From: Virginia
Well both of mine work, but I never know what is in one or what is in the other...might be the sending unit??
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Senior User
Joined: Feb 2007
Posts: 100
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Mine were noisy when I bought the truck used... eventually they both crapped out. I replaced both pumps and sending units... new ones are just as noisy. Maybe that's how they are?
Last edited by WinterRoad; Apr 25, 2007 at 01:40 AM. Reason: sp
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Postmaster
Joined: Oct 2006
Posts: 4,816
Likes: 1
From: Davis & Newcastle, CA
You guys talking about the little weeeeeeeeeeeeeeeeee that you can hear sometimes when idling? Or is this a louder/more annoying noise you speak of? I only have one tank and my fuel pump makes a constant weeeeeeee sound, I never thought it was something to worry about. Also makes a short but similar and louder noise when I turn the key on halfway, I assume this is when the pump is priming.
-Chris
-Chris
Junior User
Joined: Dec 2005
Posts: 97
Likes: 0
Both of mine do it on my 96 F250. They have done it for over two years and I now never pull fuel to the empty mark before swithching. This way if the one quits with all the fuel in it I can still go back to the other tank!
Senior User
Joined: Jan 2006
Posts: 147
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From: Leesburg, Ga
I have 94 ext cab...I hear the forward tank wurrrrrrrrrr'ing in between the bed and cab...it's done it for 2 years. I'll change it when it goes bad. To much of a pain to do it "just because"...
Senior User
Joined: Feb 2007
Posts: 224
Likes: 0
From: Virginia
Well, I did some research, and if you have two tanks and replace only one pump this is not going to solve anything. Most vehicles you will have to replace both pumps because one pump runs off of the other. The other reasons is the fuel filter. Also you may have a pump that is in the tank and has been placed incorrectly so that is is up against the metal...to answer the question of the guy who said, "maybe thats how they are." NO I don't think when they came out with fuel pump they said...lets make them noisy to **** people off. Just being sarcastic to a ridiculous answer. Soemthing is the problem here and the pumps on my truck do not whine at all. Did you check your fuel pump relay?
Old, but not too old
Joined: Mar 2006
Posts: 1,463
Likes: 1
From: Central Mississippi
I just sold my 90-f150 with 255,000 miles, the rear tank pump always was whining. I have had a 95-f150 for 6 monthe and the front pump whines. Never had any trouble out of either pump on either truck. The pump will quit when it goes bad, I suggest you drive on !!!
Jim
Jim