I have a 2003 Ford F-250 Can not find fuel pump relay

Asked by Spot1967 Feb 09, 2016 at 05:27 AM about the 2003 Ford F-250 Super Duty Lariat Crew Cab LB 4WD

Question type: Maintenance & Repair

8 Answers

11,695

There is a fuse panel under the hood as well as inside the truck. The relay you are looking for is under the hood in that fuse panel

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130

A 2003 F250 Super duty doe not has a Fuse Panel under the Hood as MStamps1 stated the Fuse Panel and relays relays under the Dash inside the truck, some other years Have fuse Panels both place but a 2003 does not.

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50

My 2003 does indeed have a panel with three relays under the hood. I've had zero luck trying to find a description of the relays in this panel. I suppose that I'll have to hit up the dealer unless there's another source?

5 people found this helpful.
40

Probably on the circuit board attached to the fuse box in the cab. It is not accessible or replaceable. I disassembled my fusebox and repaired the circuit board as the solder connections had melted.

4 people found this helpful.
220

I have a 2003 f250 Super Duty Crew Cab 5.4 auto trans 4x4. I had O'reilly's read the codes which say I have a PO231 secondary fuel circuit - voltage low which is being interpreted by most as a faulty fuel pump relay. I have had two places diagnose and search and I have looked myself. I cannot find a relay in my fuse panel, under the hood, behind the radio or in left or right kick panels. I have yet to look behind the glovebox which a friend suggested is the location in f150. The truck starts and drives but will die while driving. If I pull over, put it in park, turn off the ignition switch and wait a minute to 5 minutes it will restart and I can drive sometimes 5 miles before it dies again; other times it will not die for over a week. This has been going on for months now. If anyone can recommend another hiding spot for the relay I am open to suggestions. Thank you.

22 people found this helpful.
50

2003 ford f250 super duty it's inside the fuse box on the mother board it could be fix you got to be real careful soldering it off and back on good luck homes.

5 people found this helpful.

Check the magnetic switch inside the cab, on passenger side bellow the dash. Have a little hollow. Push the bottom. Excuse me my English is no very good.

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