05 6.0 No Start

[J350superduty]

(My 6.0 with 84K miles) It would run until it warmed up and then when I shut it off, it would not start back up. I took it to ford and they said it was fine. I drove it home and it would not re-start. I pulled the hpop and replaced the fitting on the back and the orings. I also replaced the orings and tubes in the dummy rails. I drove it for 5 miles and it stalled out right after I pulled in my drive way. I replaced the ipc sensor and it still will not start even after sitting overnight. At this point I'm thinking ipr, fcim, or hpop. The hpop was replaced 14 months ago. I currently do not have access to a scanner to read the oil psi data to see how much pressure it has. Any help is appreciated

[Banshee365]

Year? Very important...

[Evil Eye]

Without access to a scanner, you would be throwing parts at it to try to fix it. Do you get a Check Engine Light?

Might try disconnecting the IPR and seeing if it starts. Also, if you have access to a known functioning FICM, you might swap it in just to see if it starts.

[J350superduty]

it's a 2005 I tried unplugging the ipr and still no start. There are no codes and the scanner I have can see a crank signal. I'm hoping to borrow a snap on scanner soon to see the oil pressure data

[Tyler]

Sounds like not enough oil pressure. It needs 500PSI before it will start. The warm no start issues usually sounds like a bad STC fitting, and air leak, or bad HPOP

[J350superduty]

update on the truck. I took it to ford for a diagnosis. They said it the ipr valve so they replaced it and still no fix. So the service advisor called me and wanted to check the fitting on the hpop which I told him I replaced the fitting and orings but he swore thats where the problem was. So today I get a call and he said I was right and there was no leak down there and the tech is assuming it is the hpop itself. After all of this I could have kept throwing parts at it and not have a 2000 bill and still don't know if its fixed. Ford should not sell these engines if they can't diagnose them properly.

[DozerF350]

Originally Posted by J350superduty

update on the truck. I took it to ford for a diagnosis. They said it the ipr valve so they replaced it and still no fix. So the service advisor called me and wanted to check the fitting on the hpop which I told him I replaced the fitting and orings but he swore thats where the problem was. So today I get a call and he said I was right and there was no leak down there and the tech is assuming it is the hpop itself. After all of this I could have kept throwing parts at it and not have a 2000 bill and still don't know if its fixed. Ford should not sell these engines if they can't diagnose them properly.

If your truck is an '05, and you only have 84K miles on it, aren't you still under warranty, or are you barely outside that 5 year limit?