96 F-150 Fuel Problems

Eddy Bower · March 17th, 2006, 05:45 AM

I have a 96 f-150 just bought it last month or so 351w 4x4 all that when i switch the tank from front to rear the fuel pump just whistles really good and the gauge doesnt change either...the truck runs fine with the pump whistling..what could it be???

Yetti · March 17th, 2006, 07:29 AM

does it have a flip switch in the dash like chevys? if so you have to hold the switch down for 5 seconds for the valve to change completely

Eddy Bower · March 17th, 2006, 10:28 AM

it is a swith you just flip it you dont hold it or anything like that

bigblue2230 · March 22nd, 2006, 09:51 PM

it might have a clog at the valve where the two come together, or it might be a bad pump in the tank that you are switching it too. Those tanks have a low pressure pump in the tank and a high pressure pump in the frame rail. it might be trying to suck it from the tank and it might create that whistling joise. you might want to check fro power to that pump in the tank.

vwBOY · March 23rd, 2006, 02:33 PM

my dads truck did that and he has a 94 it whisted for a while then it went. it whisted for about 2 years and then she blew

frdtrckmnrich · April 7th, 2006, 10:04 PM

those trucks have one pump and sending unit combo in each tank. i had to replace them on my 95. when the pump is powered the return valve opens for that tank.when not poered the valve is closed sending the fuel to the other tank. but it sounds like a pump problem to me. you have to replace the whole unit.

March 17th, 2006, 05:45 AM	#1
Eddy Bower HillBilly Deluxe Join Date: 11-20-05 Location: L-i-V-o-N-i-A Posts: 346 iTrader: (2)	96 F-150 Fuel Problems I have a 96 f-150 just bought it last month or so 351w 4x4 all that when i switch the tank from front to rear the fuel pump just whistles really good and the gauge doesnt change either...the truck runs fine with the pump whistling..what could it be???

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March 17th, 2006, 07:29 AM	#2
Yetti BUY my P.O.S.! Join Date: 11-05-05 Location: west of Chelsea, and east of Grass lake Posts: 5,860 iTrader: (2)	does it have a flip switch in the dash like chevys? if so you have to hold the switch down for 5 seconds for the valve to change completely

March 17th, 2006, 10:28 AM	#3
Eddy Bower HillBilly Deluxe Join Date: 11-20-05 Location: L-i-V-o-N-i-A Posts: 346 iTrader: (2)	it is a swith you just flip it you dont hold it or anything like that

March 22nd, 2006, 09:51 PM	#4
bigblue2230 still goin Join Date: 11-08-05 Location: Richmond/Troy Posts: 765 iTrader: (2)	it might have a clog at the valve where the two come together, or it might be a bad pump in the tank that you are switching it too. Those tanks have a low pressure pump in the tank and a high pressure pump in the frame rail. it might be trying to suck it from the tank and it might create that whistling joise. you might want to check fro power to that pump in the tank.

March 23rd, 2006, 02:33 PM	#5
vwBOY it's how i roll Join Date: 02-04-06 Location: howell, mi Posts: 1,756 iTrader: (5)	my dads truck did that and he has a 94 it whisted for a while then it went. it whisted for about 2 years and then she blew

April 7th, 2006, 10:04 PM	#6
frdtrckmnrich FORD The Best Never Rest Join Date: 04-07-06 Location: Fruitport MI Posts: 1,144 iTrader: (25)	those trucks have one pump and sending unit combo in each tank. i had to replace them on my 95. when the pump is powered the return valve opens for that tank.when not poered the valve is closed sending the fuel to the other tank. but it sounds like a pump problem to me. you have to replace the whole unit.