i have a 04 F150 FX4 5.4 it will turn over but not start. i have replaced the fuel pump, fuel pump driver module and filter. it will start with a little starting fulid but only run for bout 4 seconds. i also checked the inertia switch. i just dont know what else to check. Thanks

 

Any Codes? Checked your fuses yet?

 

yea i checked all my fuses. and it gives me a code P01233 saying the fuel pump driver module offline

 

Check the FPDM again. Make sure the plug is seated correctly. Also I believe the unit needs to be grounded so clean any corrosion around the bolts.Check the inertia switch again, make sure it is reset.

 

I stand corrected, it grounds thru the harness.

 

i just checked it again and everything is good. i disconnected fuel line before the filter and turned the key and there is no fuel flow

 

That just confirms that the FPDM is not working as does the P1233 code. You may need to locate a wiring diagram and see if there is power or an open ground in the wiring. Don't forget the inertia switch is part of the circuit.

 

thank you for your help it ended up being the grounding wire that grounds the cab to the frame the bolt was loose

 

Glad you got it figured out. Always nice when people actually post the result of what fixed the issue.
Cheers

 

Assuming that you attempted to jump your truck, did it start then at all? I woke up this morning and my truck turned over once and then the starter just started clicking. When i jumped it, it fired up right away and i ran it for 30 minutes and after in hour it was dead again. I cleaned the terminal posts but haven't had a chance to jump it again. If that doesn't fix it i believe it could be my alternator. But is it possible that a bad ground could be the cause as well? I want to think no since it fired up with a jump. Any help would be greatly appreciated!

 

Usually better to start your own thread pertaining to your own problem. You will usually get better answers that way.

Sounds like a bad battery or alternator. Many of the chain auto parts stores will check your charging system and battery for free. Advanced auto, O reillys or autozone will do it for free. No need to remove anything, just go to the store and they will check it out.
Kev