Stated with a sluggish drive (weather went from very cold to very warm here in NJ) i figured condensation or bad gas....added Diesel 911, helped a bit till i got it home (truck wouldn't go over 40mph)....pulled fuel filter on frame rail A LOT of powdery silver metallic looking flakes spilled out....changed filter/drained h20 valve, then changed 2nd filter on top of motor.....Crank NO START what so ever....This is on F550 dump, NEEDED DESPERATEly on job site asap!

Any help appreciated!

NOTE: I cranked over motor and watched fuel bowl on top of motor fill with fuel, so im ruling out fuel pump?
Thanks! Matty

 

What is ICP psi while cranking?
FICM volts?

 

Have a look at this post https://www.ford-trucks.com/forums/1...l#post11418266, it might be worth a try. Based on the symptoms you're describing, it might be worth a look at the secondary filter to make sure it was installed correctly.

Hope this helps.

 

Unplug ICP pig tail and see if it fires

 

F550 fuel tank delamination

Josh

 

maybe true, but i watched it pull fuel to the bowl...

 

If you have silvery flakes the tank delaminated. Where are you in nj?

 

Brick NJ

Ok @ TONEFORDAYS that thread suggested bad o ring and PROBLEM SOLVED!...

ALSO MAKE SURE THAT FILTER IS CRANKED TIGHT TO TORQUE SPEC! DAMN THING HAD ME THINKING I HAD A BLOWN INJECTOR HEAD.....COST ME 2 DAYS WORK!! LOL

THATS WHATS GREAT ABOUT THIS FORUM! THANKS GUYS!

 

The silvery flakes aren't magic fairy sprinkles that appear only on bad o-rings...

Josh

 

yeah...i get it whats with the sarcasm, im far from an idiot. The reason it didnt start IS BECAUSE OF A BAD O F I L T E R O R I N G. I will deal with the tank now

 

Buy some spare filters and keep the wrench handy.

 

good advice.

 

Make time to get thst fuel tank sent out to gas tank renew, they are right in Brick

 

what should that set me back?

 

Lol magic fairy sprinkles, I think mattys main worry was getting the truck rolling down the road. I dont think you meant anything rude by that. Just trying to make sure he didnt just forget about it.