Question about 1988 Ford F 150

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Need to know how to bypass fuel relay on a 1988 ford f 150

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Just jump the relay socket under the hood or jumper the red sef test connector under the hook.

Posted on Sep 08, 2009

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1 Answer

Why do i have to bypass my fuel pump relay

I look at the relay as two different circuits, the load side of relay is that line with arrowhead, when relay is energized that line moves to other terminal, you can see voltage to load side of relay comes from fusible link. That circuit goes through inertia switch, then to the pump. Then you have the control side of relay, left side in the diagram, that side has to have voltage and ground, voltage comes from eec power relay and that circuit is grounded by the pcm.
f150 fuel pump-zkue20ih5gqqvta5qpd2pmol-4-0.jpg

Mar 25, 2017 | 1988 Ford F 150

1 Answer

I replaced fuel pump filter plugs and wires. It will start if I bypass straight to battery without doing that the pump will not come on. I've drove all over town like that but I want to fix it bought...

No idea to be honest try a american mechanic and the best to know is emmisionwiz as hes a ford dealer mechanic ,iam just a old brit fleet mechanic ,now a D series truck or a two stroke commer diesel yes but this is something i have no produck knowledge sorry

Feb 18, 2012 | 1988 Ford F 150

1 Answer

I have a 1988 ford f-150 302 4x4. fuel pumps will not run unless you straight wire the green relay on the drivers side fire wall. if you short it out they wil run. please help

You need to replace that relay. Check this out:

Nov 11, 2009 | 1988 Ford F 150

1 Answer

I have a 1988 ford f150 but it wont start and i don't know where the fuel pumps relay is at? please help..

Memory serves me correct it is above the e-brake lever under the dash. Or it could be the passenger side just up under the glove box . Hope this helps you.

Jul 26, 2009 | 1988 Ford F 150

1 Answer

Ford ranger fuel shutoff switch

i bet its the ecm relay if it starts cutting out then dies then it is the ecm relay i had one that did the same thing if its your fuel relay unplug it clean the terminals and plug it back in if it still does it buy a new one and replace if you bypass it you take a chance of burning the truck too the ground and if ya dont really care about that then find your positive wire in the plug with the key on and hook it too the one that runs your fuel pump so its hard wired

Jul 22, 2009 | 1988 Ford Ranger

2 Answers

1988 ford f150 fuel pump relay location

inner driver side fender well along with the eec relay

Feb 02, 2009 | 1988 Ford F 150

1 Answer

Fuel gauge stuck on full

need to replace the sending unit

Sep 19, 2008 | 1988 Ford F 150

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