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1988 ford f150 fuel pump installation where is the relay switch .

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UNDER THE HOOD DRIVERS SIDE, A GREEN RELAY

Posted on Sep 29, 2009

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1988 ford f 150 suddenly no power to fuel pumps


Hi Don,
your fuel pump is supplied voltage from the fuel pump relay which is supplied voltage from the EEC power relay ( fuel pump relay-Green Base, EEC power relay has a Brown Base) usually located on the left side(drivers side) of the engine compartment. These relays are supplied voltage from the fuse links at the starter solenoid on the firewall near the Battery, I hope this Helps Don!
Dight

Sep 29, 2013 | 1998 Ford F150 Regular Cab

1 Answer

Have a 1988 F-150 with a 5.0 liter engine it has been giving some running and then dying static the other day it died for good replaced fuel pump on frame rail and put on a new filter still wont run,...


There may be a fuelpump relay in one of the underhood fuseboxes. You can try some searches for 1988 F150 fusebox diagrams to find the location of the relay. The reset of the inertia sensor (safety switch) was a good try but if the fuel pump relay is bad, there will be nothing to reset because there will be no power. There can also be a crankshaft sensor which needs to generate a signal to tell the fuelpump to run.

Jul 08, 2017 | 1990 Ford F150

1 Answer

I have a 1988 ford f150 with a 5.0 not getting power to eather fuel pump. replaced relay. bench tested both pumps an they test good. truck will fire and run with starting fluid then dies like it will...


replace the oil sending switch on the motor. upon starting the engine this switch has a 3rd wire connected to the fuel pump
when oil pressure is running at its normarl psi the computer will shut that circuit off and then turn on the fuel pump relay

Aug 08, 2010 | 1988 Ford F 150

1 Answer

1997 Ford F150 Electric Fuel Pump will npt pump


Did you check the fuel inertia switch in the passenger side kick panel ?

The fuel pump is powered :
the fuse to the fuel pump relay.
The fuel pump relay to the fuel inertia switch
The fuel inertia switch to the fuel pump itself.

At the fuel inertia switch in the kick panel, power from the relay is the Dark Green w/ Yellow stripe wire and the pink w/ black stripe wire is the power. from the fuel inertia switch to the fuel pump.

If you jumper the fuel pump relay, you should hear it run. If not pull the fuel pump relay, and check the pins in the relay socket, pin 30 should be the power from the fuse.

50b0c31.jpg

If you have power at pin #30, jumper the relay socket as shown with the red line above, and check the dark green w/ yellow stripe wire at the fuel inertia switch for power.
Press the button on the top of the fuel inertia switch, and check for power leaving the fuel inertia switch on the pink w/ black stripe wire.

This is tests good, check for power at the fuel pump, same pink w/ black stripe wire.
Fuel inertia switch info is in the owners manual, If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :
https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

Jan 03, 2010 | 1997 Ford F150 Regular Cab

1 Answer

Pump relay


The relay is located on the cab on the drivers side. Locate the fuel pump inertia switch up against the firewall.
Check and see if you have a fuel shut off switch in the trunk of your car. It should tell you in your owners manual. you can see if you have power there when you turn your key on. it only powers it up for 4 to 5 seconds

Jul 26, 2009 | 1988 Ford F 150

2 Answers

'88 f150 will not start, 0 fuel pressure


I know the ford cars had a trip relay for the fuel pump. In the event of a wreck it shuts the fuel pump down and has to be reset manually. I am unsure if the pickups had the same thing.

Jul 11, 2009 | 1988 Ford F 150

2 Answers

No power to fuel pump or fuel pump wiring harness...


try the electrical ignition switch on the steering wheel colum

May 27, 2009 | 1988 Ford F 150

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

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