Powerstroke shutting down, and starting right back up?

[barbwire44]

I first noticed this a week ago pulled in a parking lot and the truck stalled, turned key and it fired right back up. Drove about 5 miles and was coasting along the road basically again at idle and it shut off again, I coasted to the side tried turning it over and it just cranked and would not start, then turned it over and hit the pedal and it started back up, I thought fuel filter so I changed it and the truck was fine for another 300 miles. then last night I was on the interstate and cruising along the truck dies for like a second, the service engine light flashed once and the truck came back to life I was going like 65 mph, then again another 50 miles further down the road the truck does the same thing cruising along at 65-70 and it just dies for a second and turns on again itself???? drove naother hour home and nothing it was fine.
truck is a 2000 F250 7.3
no real mods just a DP chip.
already did the cam sensor recall in 08
any ideas would really be appreciated I haul my race bike a few times amonth and hate to get stranded???
Thanks

[jesilvas]

First thing is remove the chip completely and see if it is solved.
Then try another cam sensor.
Did it do it while raining?
It could be battery wiring also, or the UVCHs.
But that list is in descending order of probability.

[barbwire44]

What is UVCHS ?? man I hope its not the chip, i love that thing my truck is a dog without it,

[jesilvas]

It's not the chip, but possibly the connection got bad. Just take it out to try it. If it is fixed, then just reinstall making good connections.
Personally, I think it's the cam, but taking the chip out is free, then sensor is almost free.
UVCHs are the under valve cover harnesses. Wires that feed electricity to the injectors and glow plugs. If they chaff, burn up, etc., then the injectors can't fire.

[miked.]

CHECK YOUR FUEL FILTER AGAIN, COULD HAVE GOTTEN SOME BAD DIESEL WITH WATER IN IT. I HAD A 95 PSD IT WOULD DO THE SAME THING. REPLACED THE FILTER AND RAN SOME TREATMENT THROUGH IT CEAFOAM I THINK IT WAS. STILL MIGHT BE CPS.

[02f350inpa]

just had these same symptoms on my 02 and turned out to be the IPR sensor on back of high pressure resovior had came loose.you hafta really look for it but from above nearly dead center and towards bottom of res. you will see the sensor its held on with a tin nut which mine had backed off allowing the IPR to eventually fall off and cause a no start issue after about a week of start die restart,put the nut on and tightened it down been fine since

[shmuckaluck]

Hey guys,
Sounds like the cam/crank sensor to me mine did that before and thats what it was, very easy to fix and cheap, just buy one put it in, 5 min, and if it's not it you have a spare, because it will go sooner or later.

[barbwire44]

I didn't change the CPS sensor yet, but I did notice the ground terminal was loose, really loose on the drivers side battery, I snugged it down it, basically pulled off with no effort, now I don't know if this could cause the problem or not? would be really nice if it could..LOL!! I know I would be happy
thanks

[jesilvas]

bad electrical connections can do really, really weird things

My Samsung SGH-I997 made me send this.

[barbwire44]

Just to let you guys know it was I believe the terminal causing the problem, I did buy a CPS and put it in the glovebox just in case but have not actually installed it. I have put 700 miles on the truck since tightening the terminal and it has not acted up.....
hopefully problem solved.