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Ford F-Series Fuel Pump/Fuel System

109 messages,  Last post on Dec 04, 2009 at 1:47 PM

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What is this discussion about? Ford F-150, Truck


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#21 of 109
gas tank help by junkman5
Nov 03, 2007 (2:14 pm)
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I bought a Ford F150 (1990)used. The back gas tank is no good. I want to remove it anyway, but when I do I can't get the lines run so there's no leak. Is there any way to do this with plastic lines without replacing the whole gas line system?
#22 of 109
1989 f-150 fuel problem by jim190
Nov 04, 2007 (9:53 am)
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My problem is that during driving, the truck acts like it runs out of fuel. Tank has gas. let the truck sit usually over night, and it will start. I have change the fuel filter many times, also pick up pumps and HP pump, no junk in tank. any ideas
#23 of 109
Re: 1989 f-150 fuel problem [jim190] by steve1dogg
Nov 04, 2007 (5:47 pm)
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Replying to: jim190 (Nov 04, 2007 9:53 am)

Does your check engine light come on when that occurs? If you shut your truck off after that and then turn the ignition key to ON does the fuel pump not run for a short time like it should?
 
The symptoms you described and the things I listed describes how my truck acted. Talking to people and reading up on it pointed me to not consider the ECM box -- that the ECM box hardly ever goes bad, but, after running into many deadends I eventually got a rebuilt ECM from O'Reilly's and it has been running like a top -- again.
 
Not saying that is what you are dealing with -- just want you to keep your mind open to that possibility. God luck.
#24 of 109
Re: Pump Problem [stan58] by ivan_tech
Nov 05, 2007 (10:57 am)
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Replying to: stan58 (Oct 15, 2007 4:37 pm)

The rear fuel pump just doesn't come on.
#25 of 109
fuel tank problems by wibble2
Nov 24, 2007 (12:40 pm)
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i have a 1995 ford F150. the front fuel tank pump died and i want to remove the fuel from that tank. i bought a self priming transfer pump but i can't seem to get it working. does the tank have a stopper or what am i donig wrong?
#26 of 109
1989 F150 fuel problem by mwatkins
Nov 26, 2007 (1:13 pm)
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Hello, I have a 1989 F150 with the straight 6 engine that has over 260,000 miles on it. The truck has always run well but I'm now having a problem with what I think is the fuel system. The truck will sometimes stall and run rough like it is running out of gas, and eventually quit. If I sit for about an hour, I can get it running again and it will run fine for a few days, then the problem repeats itself. I've replaced the fuel filter a couple of times and a mechanic has checked the fuel system pressure, but is unable to diagnose the problem. I'm not comfortable driving the truck now and would like some suggestions from anyone out there as to what the problem may be. Thanks, Mike
#27 of 109
Re: gas tank help [junkman5] by mickeymouse2
Dec 12, 2007 (4:04 pm)
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Replying to: junkman5 (Nov 03, 2007 2:14 pm)

Your Ford runs on 30-40 psi of fuel pressure. Using rubber fuel hose and clamps would be fine. Using the plastic lines is only safe if it is mounted on the inside of the chassi rail to protect it. Good Luck.
#28 of 109
Gas Line problem by elephant
Dec 16, 2007 (2:24 pm)
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I have the hard plastic gas line and front tank connection went bad. The part is discontinued so can anyone tell me how to blank off the line so the truck will run on rear tank. I have tried plugging the line and clamping it to no avail. Thanks
#29 of 109
Re: Gas Line problem [elephant] by mickeymouse2
Dec 16, 2007 (3:23 pm)
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Replying to: elephant (Dec 16, 2007 2:24 pm)

You din't specify year make or model but it doesn't really matter, Fords are pretty similar. First your only dealing with about 30-35-40psi of fuel pressure.
 
Depending where the line broke depends how to do the fix. Autozone sells a mending kit for those lines that come with the new quick connect ect. If the line is damged or leaking, the easier fix would be to repair that section. If it is a return line, you can also bypass the first tank all together with a sutible size tee, rubber fuel line and clamps. If you choose to do the bypass, just make sure your splicing into the same type of fuel line on the other tank..,return or outlet. If you specify where exactly the line broke, or if it is the tank fitting itself, and more info on the type of vehicle and fuel system, such as does it have a selector valve ect. Any way hope this helped, good luck.
#30 of 109
Gas Line problem by elephant
Dec 16, 2007 (8:19 pm)
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The truck is a 1990 F150 extened cab. The break is at the front tank quick connect. There is a y in the line about 12 inches from the break and it travels back to the front the rear tank. The front tank has never worked so I just need to cap that line that used to go to the quick connect at tront tank. Thanks for the help.

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