Fuel issue to solve please help guys
03-02-2019, 07:08 PM
#1
Fuel issue to solve please help guys
I’ve had two past threads where the forum helped me figure out some issues. Now truck will run and drive but it will start stumbling and then die. It’s a fuel issue I’m sure. After a few minutes truck will start and drive running like a champ. Replaced fuel filter fuel pump if working also. Could this be the fuel pressure regulator? 04 f150 5.4 sons first truck please help
03-02-2019, 07:21 PM
#2
05 5.4l 3v s.crew lariat
You don't have a fuel pressure regulator
This is fuel on demand no return line to tank for excess fuel. Its all controlled by fpdm on rear axle . Fpdm is a problem child it corrodes and acts up ,inspect yours . They fail sooner than later . New ones are on standoffs to prevent alum back from touching steel and trapping salt and water . Not saying thats your problem but it will be if not now .
Best to change it early I used dorman for this .
Best to change it early I used dorman for this .
03-03-2019, 10:12 AM
#3
Mark
iTrader: (1)
FPDM would be my first suspect.
