Question about 1990 Ford F150

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Ford f150 fule pump

Where is the inertia switch?

and i took the pump out of the tank

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Were is the fule pump on a ford 150?

Posted on Mar 20, 2009

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I think you called it a fuel shut off switch. It is under the dash on the passenger side. Your initial post said the button was not up but I have seen them go bad and not pass voltage even in  the down position.

Posted on Dec 31, 2008

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1 Answer

Wiil not start put new fule p


Did you check B+ voltage an ground to fuel pump before you replaced it ? Did you look at a wiring diagram to see what controls the fuel pump ? There is a fuel pump relay in the central junction box , an there is the inertia fuel cut off switch , an then there is the biggest problem on this ford , the fuel pump driver module. The fuel pump driver module is controlled by the engine computer . Ford Electronic Returnless Fuel System Diagnosis Part 1 I suggest that you watch this video , that is if you except to fix this problem .

Jan 09, 2016 | 2004 Ford F150

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1995 f150 fuel Pump not working


it fuel pump is bad or you have a short somewhere in the ignition

Jul 06, 2012 | 1995 Ford F150 Styleside Regular Cab

1 Answer

2001 ford f150 new fuel pump filter relay and checked inertia switch but 6.5 volts at cutoff switch and at the fuel pump should it be 12volts


Yes it should be 12 volts at the pump. i have had this problem at the shop a couple of times and i replaced the inertia switch and it fixed it. Also check the connector at the inertia switch, there is high resistance in the circuit which is causing the voltage to be low.

Jan 07, 2011 | 2003 Ford F150 Regular Cab

1 Answer

I have a 1998 ford wind star new fule pump but still not geting fule , wont crank engine turns ove but won;t start


INSTALL PRESSURE GUAGE THEN CK, VOLTAGE TO PUMP PCM TURNS ON PUMP RELAY FOR 2 SECONDS WHEN KEY CYCLED ON ,, IF NO POWER CK INERTIA SWITCH ( MAY BE TRIPPED ) IF NO POWER TO INERTIA SWITCH CK FUEL PUMP RELAY IF NO VOLTAGE AT PUMP RELAY THEN CHECK FOR SPARK AT PLUGS IF NO SPARK CK PCM POWER RELAY IT SUPPLIES VOLTAGE TO PCM THAT INTURN POWERS FUEL PUMP RELAY

HOPE THIS HELPS

Aug 08, 2010 | 1998 Ford Windstar

2 Answers

Not getting power to the fuel pump or the tank


Do you have power at the inertia switch?

Jun 30, 2010 | 1986 Ford F150 SuperCab

3 Answers

We replaced the fuel pump driver module and 2004 ford f150 still won't start. It is showing a theft code. Help?


Hi. There is a ground wire on the frame about half way back. Be sure there is a good connection. Plus check every other ground wire. Do Not spend money on parts until you have cleaned every ground terminal!! This is an on going prob with Ford.

Mar 24, 2010 | 2004 Ford F150

3 Answers

Working on a 1991 F150 5.0L, Sometimes the you can hear the electric fuel pump(s) come on sometimes they don't. Are there two fuel pumps in a dual tank truck and if so do they share a common fuel pump...


No, the pump is not all the way working. Pump works only when you turn ON the switch to your key and it turn OFF in 3 second to get pressure the tanks,ok.

Mar 08, 2010 | 1991 Ford F150

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

1990 f150 fule pump wont shut off when truck is shut off


Check the power supply going into the fuel pump relay. If it is still hot when the ignition is off then your ignition switch is probably the problem.

Feb 17, 2009 | 1990 Ford F150

1 Answer

Truck wants to trun over but wont.


You mean it turns over but wont start? have you checked the fuel pump inertia switch? it is on the rt side kick panel i believe. will have a reset button sometimes can trip if it gets kicked. can also try beating on tank while spinning over and see if this shakes pump to get it working

Nov 14, 2008 | 1996 Ford F150 Regular Cab

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