96 f-350 only runs for 10sec and dies - Ford Powerstroke Diesel Forum
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Old 03-04-2011, 05:32 PM
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96 f-350 only runs for 10sec and dies

96 f350 just put a motor in it 10 days ago and its been running great..
Today after finally got the thermostat housing to stop leaking we took it to the car was and sprayed degreaser all over and pressure washed it...
ran fine for about 20 min after...

then it would barely run, sputtering, so on.. die out.. Then it ran fine for like an hour.. now it will only run for about 10 sec and clank and die out...

tried a different IDM, new crank sensor, pulled both harnesses off the valve covers and they are dry and mint.. air cleaner is mint..
FIlled fuel filter houseing with 911 and that didn't help either... i'm in the U.P. of michigan like 25degreeze
Any Ideas???
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Old 03-04-2011, 05:43 PM
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almost forgot.. check engine light is on and put my edge programer on it and it said no codes, also have a hand held scanner and it did pull any codes either???
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Old 03-04-2011, 05:53 PM
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i have a 96er also, you have checked 2 things that i would have suggested. (IDM and wiring harness) did you check your HPOP reservoir?
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Old 03-04-2011, 05:54 PM
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how do u check the hpop resivor?????? or high pressure pump?
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Old 03-04-2011, 07:17 PM
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Moral of the story.....dont pressure wash anywhere close to sensors. Check the IPR on the HPOP and the connection. Also unplug the fuel heater on the fuel bowl just incase something got knocked loose on that. Check the fuel lines by the fuel bowl. Check the big plug for the main engine wiring harness for moisture. Check all wiring.
I am wanting to chew your a** right now. Why would a motor you guys put in 2 weeks ago need to be pressure washed? Should have cleaned it all up while it was out and half apart swapping stuff.
I wont be home till after 330 tomorrow, call me if its not right by then
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Old 03-04-2011, 08:50 PM
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High pressure oil tanks are full... Doing fuel pressure test in the morning.!!
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Old 03-05-2011, 08:53 AM
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ok.. truck doesn't run long enough to build very much fuel pressure... about 15 to 20 psi befour the truck dies.. maybe runs 3 sec....

So we tested my buddies other truck fuel pressure and He has one of the Springs in it.. that truck is at just over 100psi.. and then i broke my gauge (100psi gauge) First time we checked the pressure... Its been like this for over a year and runs great!
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Old 03-05-2011, 09:12 AM
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Quote:
Originally Posted by Fordman247365 View Post
Moral of the story.....dont pressure wash anywhere close to sensors
BAH to you good sir! I pressure wash my motor all the time. Running or shut off, never have a stumble or hiccup lol

Quote:
Originally Posted by Duster View Post
ok.. truck doesn't run long enough to build very much fuel pressure... about 15 to 20 psi befour the truck dies.. maybe runs 3 sec....

So we tested my buddies other truck fuel pressure and He has one of the Springs in it.. that truck is at just over 100psi.. and then i broke my gauge (100psi gauge) First time we checked the pressure... Its been like this for over a year and runs great!
Sounds like you have a fuel supply issue, Check all your filters, Fuel pressure regulator screen and filter, then maybe get a new pump
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Old 03-05-2011, 09:13 AM
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That should not be possible. That could blow every fuel seal you have.
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Old 03-05-2011, 09:15 AM
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Quote:
Originally Posted by dereku View Post
That should not be possible. That could blow every fuel seal you have.
yeah i didnt even wanna comment on that, something is wrong with that 100psi, heck i have even seen 70psi blow apart stuff on higher mileage trucks
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