hey guys,
I was driving my 2000 F250 today, everything was peachy.....stopped shut the motor off for 10 or 15 mintues...started it back up...idoled for about 2 minutes...and it went from a deep chugging like a normal 7.3, to sounding kinda like a 6.0. When I took off it started shaking, running real rough, and running speractic like it was starving for fuel. Finally it shut off and now will not crank. Took it in 6 months ago to get the crank shaft position sensor replaced, Could it be that???
I'm lost...anything helps!!!
Check back in da AM!!!

 

Does it crank and not start or not crank ( turn over ) at all? Have you checked the oil in the hpop resivior? Was it parked at an incline of any sort?

 

SES light on? If so get the codes and post back what they are.
Is oil full and of the correct weight? when was the last fuel filter change? Got plenty of fuel in the tank?
CPS, Maybe. Does the tach move when trying to crank?
could also be, IPR, or a UVCH loose.

 

whats the hpop??? i parked on an incline fri afternoon for a couple 3 hrs with 1/4 tank then went and filled up. have driven roughly 50 to 70 miles since with no probs. it will start for a few secconds then lope realy bad then die. it sat for 15min then started up and ran for a bit, still real rough though. i got bout 3000 on the fuel filter and got rotella 15-40 in her. its at my girls house im not their but will be in the am with a code reader. keep up the in put i really appericate it and will keep yall posted in the am. gotta get it running cant give ford a bad name can we... cuz now it is found on road dead...

 

Sounds like a fuel supply problem to me.

 

I wounder what CPS (Cam Positioning Sensor) They put in??? Could be another attck of the new grey cps!

 

So is it running for a few seconds then dieing, or will it not start? If I read your post right, this all started 50 - 70 miles after you filled up with fuel? Did you pull the fuel filter lid and check to see if you have fuel in the bowl? Does it run rough at idle, or just when you start moving?

 

That was my first thought as well. No fuel.

 

It does seem like a fuel problem, can you hear the pump coming on when you turn the key to run? Does the rpm's jump around when it is first started or does it have a steady idle for the little time it does run right now?

 

hey yall just read the codes p0470 exaust back pressure sensor and p1211 forgot what that one means. when i started it up a puff of white smoke came out.... im bout to go pull the fuel filter and check it. keep up the posts and great ideas check back in a bit

 

P1211 is the ICP not controllable.
Try unplugging your ICP sensor, see if that changes anything.

 

ok will unplug it but wheres the exhaust back pressure sensor .... my book dosent specify where its at. and whats the hpop???? my running to the parts store for a filter and a back pressure sensor check in when i get back keep it comming

 

HPOP is the high pressure oil pump, the one that runs your fuel injectors. Check your engine oil level, if your in the normal operating range I'd continue troubleshooting fuel. If your filter bowl still has fuel in it probably look towards the CPS.

I think I've seen the exhaust code before, I don't think thats your problem but one of these guys knows better than me.

 

I agree, the ebp sensor isn't the problem.
The ICP is the round sensor on the forward inboard corner of the driver's side head.

 

ok when i unplug it should i run the truck with it unplugged