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Ford F-Series Fuel Pump/Fuel System

100 messages,  Last post on Oct 05, 2009 at 7:32 PM

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


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#91 of 100
Re: Fuel pump relay [oilslick01] by mickeymouse2
Aug 27, 2009 (11:24 am)
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Replying to: oilslick01 (Aug 27, 2009 10:48 am)

The relay is usually green in color on the drivers side engine compartment. The inertia switch or what the other person described as a collision switch can be located in 3 different areas; left kick pannel, right kick pannel, and on firewall inside cab on either passenger or drivers side. If there is no power going to the inertia switch with key on. it will be your ignition switch or fuel relay. Common issue is the fuel relay because it is mounted upside down and will collect moisture.
#92 of 100
Re: 93 F150 P.U. Fuel system [tgj1] by bagz
Aug 31, 2009 (9:20 am)
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Replying to: tgj1 (Jun 15, 2009 8:09 pm)

have you figured out this problem yet??? my truck is doing the identical thing?/????
#93 of 100
fuel pump by exbubblehead
Sep 05, 2009 (8:41 am)
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1990 F150 4.9 EFI. Fuel pump runs for as long as a minute. It will then start, and with the exception of an occasional high speed miss, it runs ok. Same process to start it again. Found a loose, capped hose that was clipped to the frame in front of tank. Dont know where it goes. Could it be check valve or something else?
#94 of 100
Re: fuel pump [exbubblehead] by stan58
Sep 06, 2009 (6:09 pm)
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Replying to: exbubblehead (Sep 05, 2009 8:41 am)

sorry but can't help you on that
#95 of 100
Re: 1990 Ford f150 fuel pump relay [hotrod_7292] by hazymoon
Sep 08, 2009 (7:38 am)
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Replying to: hotrod_7292 (Jan 12, 2007 7:48 pm)

Did you find out what was wrong?
#96 of 100
Re: 1990 Ford f150 fuel pump relay [scubarash] by hazymoon
Sep 08, 2009 (7:44 am)
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Replying to: scubarash (Jul 13, 2006 4:46 pm)

Did you find out what was wrong?
#97 of 100
Re: 1990 Ford f150 fuel pump relay [hazymoon] by stan58
Sep 09, 2009 (8:17 am)
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Replying to: hazymoon (Sep 08, 2009 7:44 am)

No I replaced the rear tank but had no luck, will try again when time is available. I wish someone could tell me how to do away with the front or rear tank but have not found that person, and yes the pump in the rear runs.
#98 of 100
Re: 93 F150 P.U. Fuel system [tgj1] by hazymoon
Sep 12, 2009 (12:50 pm)
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Replying to: tgj1 (Jun 15, 2009 8:09 pm)

I don't know about the pancake part but I have 2 1992 f150 fords 6 cyl 4.9 and on both trucks my fuel pumps would not stop running and it would not start. Had gas had spare but the pumps would not stop running when the key was on! I took it to a 35 year ford man he didn't even look at it all he said was it is your IIC box, both times I had him put a new one on and the way I went Part is about $100.00 same with other truck IIC box!!
#99 of 100
1990 ford F 150 Fuel pump wont cut off by wannaname
Sep 20, 2009 (11:54 am)
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Hello, I have a 1990 F 150 . I replaced the fuel pump and now the fuel pump won't shut off resulting in the truck won't start unless I spray gas in carb. first. I have check fuel filter and gas is coming thru to engine.I also used the check valve in rail to check for fuel,I have replaced the fuel relay, fuel regulator, also. Could any one help with this problem.? I really appreciate all help.
#100 of 100
f-350 6.0 fuel sensor by bmarshall57
Oct 05, 2009 (7:32 pm)
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I have a 2004 F-350 6.0 the sensor shows water in the fuel, today I drained the water seperator and there was only a couple drops, last week I changed the fuel filters and added a salution to obsorb the water, also it seems that when I loosen the fuel cap then put it back on the lite goes out for a while,could it be the sensor.
thanks for any suggestions

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