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Old 03-24-2014, 10:18 AM
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04 6.0 No start

04 6.0 175k miles on it. Was on the way to town I noticed power was way down. Little by little the truck slowed down till all it would do was idle. These are all the codes it came up with. Fmic voltage is good.Truck has a tune, but i have no idea what tune is on it. I bought the truck like that from the dealer. Truck was running like a beast before. I think i could be either, the IPR valve, HPOP, or the STC fitting? I just go the truck last year in october.

Before today I already had long crank start issues and the oil pressure gauge needle drops down to low when at idle. Then goes back up to normal once I give it some throttle.
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Old 03-24-2014, 10:27 AM
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Ensure that your oil filter and the cap are Motorcraft/Ford products.

Remove the tune from the equation, if possible. Return to stock programming until you figure out the problem and fix it. Tunes can wreak havoc while trying to troubleshoot.

Don't assume your FICM is good. I am not convinced that the monitors are accurate at the time of cranking the engine over while it is stone cold. Take the window off the FICM and check it at that time. Multiple injector codes points to FICM.

The 2004 model does not have the troublesome STC fitting. That fitting was introduced in the 2005 model year.

Try unplugging your ICP sensor. If the ICP sensor pigtail is soaked with oil, replace the ICP sensor and the pigtail.
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Old 03-25-2014, 10:37 AM
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Quote:
Originally Posted by NYC F-350 View Post
Ensure that your oil filter and the cap are Motorcraft/Ford products.

Remove the tune from the equation, if possible. Return to stock programming until you figure out the problem and fix it. Tunes can wreak havoc while trying to troubleshoot.

Don't assume your FICM is good. I am not convinced that the monitors are accurate at the time of cranking the engine over while it is stone cold. Take the window off the FICM and check it at that time. Multiple injector codes points to FICM.

The 2004 model does not have the troublesome STC fitting. That fitting was introduced in the 2005 model year.

Try unplugging your ICP sensor. If the ICP sensor pigtail is soaked with oil, replace the ICP sensor and the pigtail.

Where is that located .. im havig a brain fart..lol
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Old 03-25-2014, 10:45 AM
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Where is what located? The ICP sensor?
For the 04 year there are 2 possibilities. One is on the passenger side valve cover close to the alternator and the other is on the HPOP cover (next to the IPR) accessed from under the truck and reaching up.
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Old 03-25-2014, 10:51 AM
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Quote:
Originally Posted by NYC F-350 View Post
Where is what located? The ICP sensor?
For the 04 year there are 2 possibilities. One is on the passenger side valve cover close to the alternator and the other is on the HPOP cover (next to the IPR) accessed from under the truck and reaching up.
Thanks.. Imm goning to check that out and see if it has oil in it.. Mine is running rough and have tried almost everything.

Thanks
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Old 03-25-2014, 12:46 PM
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IPR is pretty much open all the way and the hpop pressure will not go over 448. I'm gonna remove the IPR valve later today to inspect the screen for damage.

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  #7  
Old 03-25-2014, 12:48 PM
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ICP is good. I disconnected it then tried to crank and it still had the same problem. No oil on the icp and there is no visible damage.

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