10min start

[big om]

I have a 07 6.0 f250 that wont start for 10min when i shut it down. If i let it idle for 10 min it will start right up. It has a new pump and ipr. I have also checked for a leak in the high with valve covers off and hear no leaks. manually checked pressure at icp port and when it wont start it is low, but i find no high side leaks. Help please.

[kaya@bernhausen]

i'd start by checking for base oil pressure when the problem occurs

[big om]

i have checked low side it is 27psi a hot idle.

[jesilvas]

Maybe FICM.
But I'd think a HPO leak. Hot oil - thinner - leaks easier than cold.

[big om]

Here is a little more history. This truck was check for high side leak with valve covers off and 500psi with a nitrogen bottle. I pluged off the fitting at the high side pump, and could hear no leaks. please help

[big om]

This truck runs great you can drive it anywhere, but you will be there 10-15mins, before it will start. Only tr code is sometimes a low ipc if you crank it to long.

[kaya@bernhausen]

27 base psi? way too low.
how long does it take the low side to build pressure? should be immediate
i'm thinking lpop

[big om]

My low side oil reads the same as my friends 06.How does the low side affect the high side. One guy said the low side slightly pressured the high side inlet side, but it will start with the oil filter off so I dont think that is true.

[strokemyego]

you can't make proper high pressure oil without low pressure. and yes 26 is pretty low actually. how are you getting that reading? and when you are leak testing it, you are doing it with the engine hot right? i know it sucks pulling valve covers or turbo when hot but its the only way. it could also be the branch tube

[s20055]

I was told that you should be seeing 65 psi on the low pressure side when my pump ate a needle bearing. If that's accurate, you're not building enough. Pressure would drop low enough at idle to throw the dash gauge into alarm (drop to zero). Also, had no power at all...gutless.

Makes me sick to my stomach.


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