Please help, bus still not running. - Ford Powerstroke Diesel Forum
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Old 01-31-2011, 02:08 PM
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Please help, bus still not running.

Ok, I've posted here asking this before, but I really need help.

2002 powerstroke e350.

was running great, had just installed a TS Chip, bus was strong as heck. Would actually spin tire..

Was driving down the road, and it just quit.

Ok, so, since then, I've changed the CPS
Added 2qts oil
NO codes stored
2 brand new top of the line walmart batteries.
New fuel filter
Definitely fuel going to the head, checked pump, checked filter, removed test port on head to make sure it has fuel.
Probably needs an oil change, but shop said that shouldn't stop it from running.
Have checked every safety switch on the bus to make sure nothing there is stopping it from running.
It has oil in the HPOP resevoir
Bus will run on ether, just a tiny sniff, after glow plugs were done cycling.

So, as it cranks over, absolutely nothing, not even a glimmer of hope that it will start. tank is full of oil, no blown fuses, I had found a blown one under the hood, But I think that was for the AC compressor, as my compressor was removed. But, I replaced that fuse, it hasn't blown again, and there are no other blown fuses anywhere, all checked by my fluke meter.

Ok, now,
what I just noticed,

at the valve cover, I only get 4.4v DC power to the center wire. I got nothing AC power. do you think there is something wrong here?

Please guys, we are taking the bus on a family vacation in 3wks, and we really don't want to have to spend the $$ to put it in the shop.

Thanks guys,
Len
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Old 01-31-2011, 02:19 PM
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honestly i would say its the chip my pickup did this twice to me...the chip needs to be taken out and and cleaned again until the problem subsides...just my 2c
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Old 01-31-2011, 02:24 PM
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Sorry, forgot to say, chip was almost brand new, 3wks maybe. As soon as the bus died, I removed it, and tried starting it up again.
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Old 01-31-2011, 02:31 PM
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hmmm did you by chance un hook the batterys and let the set for like 10min??
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Old 02-02-2011, 03:30 PM
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Unhooked them when I put in the new batteries. I ordered a new IDM, figured that is what controlled the power to the injectors. I read, a fuse, a relay, or the IDM could be bad.

Fuses were all good, Relays were checked with an ohm meter, and a 12v battery activating it.

What do you guys think? Am I barking up the right tree?
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Old 02-02-2011, 03:42 PM
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I know you said you were getting fuel into the bowl but, have you actually checked fuel pressure?
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Old 02-02-2011, 03:45 PM
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Should be around 45-50 PSI, I think
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Old 02-02-2011, 04:28 PM
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i don't have a guage, but I pulled the rear port on the drivers side head, and fuel went spurting everywhere, then I turned the key on, and fuel came shooting out, I couldn't put the plug back in with the key on. I don't know if I have 45lbs, but there is quite a bit. I have a fuel guage for EFI cars, like my old race car, but it doesn't plug into the powerstroke. The I pulled the outlet hose on the fuel pump, and filled a big coffee can in about 5min. And the fuel flow never slowed down. Kept pumping a continuous speed the entire time I was testing it.....

That's the best diagnostic I could do without a fuel guage.

My obd2 tester is the torque app on my droid running through a bluetooth transmitor.

Len
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