Question about 1994 Ford F150 Styleside Supercab
Where is the fiuel pump relay located
Posted by Anonymous on
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Posted on Jan 02, 2017
Engine Compartment fuse panel ( driver's side fender ) relay 301. Layout with numbers should be on the lid ( numbers only, not the functions ).
If you did not get an owners manual with your truck ( purchased used / lost ), you can download one from Ford in PDF format:
Makes it real quick to search for keywords.
Posted on Dec 08, 2009
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.
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 :
Posted on Jan 03, 2010
For the new body style F-150 the fuel pump relay is not a serviceable item, it is built into the fuse panel.
The fuse is fuse 34 ( only for 04 & 05 MYs ) which is called Fuel injectors in the 04 Owners Manual.
The other items
1. Fuel Inertia switch ( assume you checked this, but it was not called out )
2. Teh Fuel Pump Driver Module ( FPDM ) on the cross member under the back of the truck. You need to drop the spare to see it.
There is a TSB on this, where corrosion can build up between the aluminum FPDM case and the steel cross member, causing the module to crack.
Here is what mine looked like before I changed it on my 2006
The cable is the spare tire lift cable and the picture is facing the front of teh truck, the tire is the driver's side rear tire.
Posted on Sep 25, 2010
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