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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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#51 of 109 Re: Need help! [asallee] by mike9408 Apr 16, 2008 (5:05 pm)
Replying to: asallee (Mar 04, 2008 6:30 pm) I would say that the device in the frame rail next to the forward tank is an external fuel pump or your selector valve. If the selector valve is not working you would only be able to use the fuel from the tank it is set on. Check your fuse pannel to see if the fuse is blown on either pump and the selector valve. If you find blown fuses, correct the problem with the wiring etc and replace the fuses, this should make both tanks useable. Mike
#52 of 109 fuel pump noisy & won't crank by terny1 May 02, 2008 (11:33 pm)
It's an 88 f150 4x4 302 efi 5 speed stick dual tanks. I turn key on and the fuel pump under the cab makes a noise (no fuel pumpin) I can mess with it either by turning key on & off or squirt gas into intake and it will quiet (catch a prime) and start but smokes (black). It'll run great til the pump loses prime. Could it be filters clogged or is the pump going bad. It has always had a problem when rpms over 3000 like it runs outa gas but other than that it has been a great ride until now. I'm confused. Thanks fer any assistance. TWN...
#53 of 109 fuel pump! by help21 May 20, 2008 (12:57 pm)
1986 f150 i pulled the line off of the pressure pump on the driver side frame turned key on to see if fuel would pump out and it did nothing,also checked the inertia button,turned the key on to see if the pressure pump worked , it clicked one or two times,if i put gas in the motor it will fire,it had two new fuel pumps put in the tanks a few years back and a little gas put in it to see if it ran and it did,but it has sat ever since,can u please help me?!
#54 of 109 help21 by help21 May 20, 2008 (1:01 pm)
that 86 f150 has a 302 two wheel drive auto
#55 of 109 disconnecting the fuel line by randy714 Jun 09, 2008 (2:49 pm)
hi,can anyone tell me how to disconnect a fuel line.my 94 f150 has a bad gas leak,so i dropped the gas tank and need to know how to disconnect the lines,then i can put in the new tank.please help Replies to this message: mike9408 (Jun 14, 2008 6:25 pm) mike9408 (Jun 14, 2008 6:28 pm)
#56 of 109 Re: disconnecting the fuel line [randy714] by mike9408 Jun 14, 2008 (6:25 pm)
Replying to: randy714 (Jun 09, 2008 2:49 pm) special tool sold in most automotive parts stores, is a collar that fits around smaller end of the two lines, push collar into coupler releases multipul fingers which spring out to larger part, once collar is pushed in just work lines apart, good luck mike0408
#57 of 109 Re: disconnecting the fuel line [randy714] by mike9408 Jun 14, 2008 (6:28 pm)
Replying to: randy714 (Jun 09, 2008 2:49 pm) special tool sold in most automotive parts stores, is a collar that fits around smaller end of the two lines, push collar into coupler releases multipul fingers which spring out to larger part, once collar is pushed in just work lines apart, good luck mike9408
#58 of 109 Fuel problem 92 150 300CID 5 spd manual tranny by oldford2 Jun 16, 2008 (12:33 pm)
This problem has plagued me for some time.It seems if the truck sets for a couple of days when I try to start it, it will start and then stall and the fuel pump will keep running and flood it out.Attempts to restart it are impossible until much later.Last time it did this I was under way and I tried to restart it by popping the clutch as it was still rolling and blew the muffler wide open. Sometimes it will run for weeks and no problem then all of a sudden Bingo. There is a leak from the top of the gas tank and am having it replaced this weekend but don't know if this is the cause. Any suggestions? Replies to this message: oldford2 (Jun 30, 2008 4:53 am) mike9408 (Jun 30, 2008 10:03 am)
#59 of 109 Re: Fuel problem 92 150 300CID 5 spd manual tranny [oldford2] by oldford2 Jun 30, 2008 (4:53 am)
Replying to: oldford2 (Jun 16, 2008 12:33 pm) In replaceing the gas tank my mechanic noted that the four prong electrical connection to the tank had deteriorated and was making a poor contact and so spliced in another he got from the junk yard and PRESTO all my problems disappeared and she now runs like a new one. Just something else to look out for when one runs erratic. Replies to this message: mike9408 (Jun 30, 2008 10:03 am)
#60 of 109 Re: Fuel problem 92 150 300CID 5 spd manual tranny [oldford2] by mike9408 Jun 30, 2008 (10:03 am)
Replying to: oldford2 (Jun 30, 2008 4:53 am) I found I had the same type of problem on my 1991 F150. It actually happened to me twice. found that with all the arching at the posts the temper had been lost at the post clips, just kept happening. So I went down to the hardware store and bought 4 wire kerneys (for #12 wire),cut the burned spring clips off the old harness and kernied the wire to the posts. This finished the problem for good. I had done it so many times that I cut an access hole in the bed above the connector and make a trap door just for this problem. Mine works great now...

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