Injection pressure regulator

[f100cleveland]

Where is the ipr on a 06 6.0? My truck still has the no start when warm problem. Took it back to the dealer and since it doesn't throw a code or won't do it for them they will not put any parts on it to see if that fixes the issue. I am willing to either rebuild or replace things to make it right. I'm still under warranty but that hasn't helped when they don't do anything.

 

[DR.Diesel]

They need to do a air pressure test on the high pressure system.they can turn the ipr off with a scanner and listen for air leaks.usually when it starts cold and hard/wont start hot you have a leak in the system somewhere.usually its the stc fitting or the dummy plug o-rings on the high pressure oil rail.the lower seal blows out causeing the lose of oil pressure in the oil rail.there have also been cases of a sticking ipr valve and possible a low pressure oil pump regulator valve sticking in its bore on the front pump housing.but id bet on the hiogh pressure system leak.just my thought.

 

[HeavyAssault]

IIRC the IPR is under the turbo. GOOGLE "6.0 Bible"