06 power stroke will not start no mods just drove for an hour and stoped for 15min and it will not start back up

 

Is the truck still hot?

Cranking OK?

Let it cool down, and try and start it. Sounds like if it was running fine 'till you shut it down, you've got a high pressure oil system issue (IPR stuck, high pressure oil leak, etc).

High pressure oil leaks manifest themselves most when the oil is hot, and thinner than usual.

 

If you've got access to a scan tool - monitor ICP pressure and voltage and IPR duty cycle during cranking. Your truck needs a minimum of 500psi or .8 volts to start. IPR should be about 14 percent KOEO, and climb to around 40 or so cranking, and after starting should be below 30 percent if there's no oil leaks...most commonly 22-24 percent. If when you do start the truck and monitor data and the IPR percentage is over 30 percent, there is a high pressure oil leak somewhere.

There are SO many things this could be - if you can monitor some data while it won't start it will help out a lot.

FICM can also cause this, but usually the truck will run like a can of poop for a bit first.

 

We had one that had the exact same symptoms, Turned out to be FICM.....but then again the truck did get hit by lightning in the 15 minutes it sat

 

My wife just bought the truck and drove 6 miles and it will not start

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im at work getting this info second hand

 

BAH, do these trucks have an inertia switch?

 

it is cranking fine, had her disconect the batter for a couple of min no help

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what can i do if this is the case, she said the dipstick was sticking out a little

 

Hard to say, it could be a few things. Only thing I can think of is to let it cool then try again. If it starts its probably a HPOP leak.

 

Yes, they do have an inertia switch, but for the most part a 6.0 will run with zero or negative fuel pressure. Not very WELL, mind you, but they WILL run.

Now that it's been a little while, is it cool? Try it now.

Dipstick doesn't have anything to do with the High pressure oil system. The Powerstrokes (except the 6.4) use what's called a HEUI system which uses engine oil at EXTREMELY high pressure to fire off the injectors. The high pressure oil system is almost entirely separate from the low pressure lube circuits of the engine itself. Low pressure oil pump fills the filter housing, and in turn fills the HPOP reservoir, which then feeds oil to the high pressure oil pump, which can create oil pressure up to 5000psi - so there's all these little snap connectors and o-rings that do in time leak under high pressure, and this can be amplified by the oil being hot, as it thins out when it heats up.

When she's cranking it, see if the oil pressure gauge on the dash moves up. This can be SO many things, we may not be able to help you over the internet with it, but I can offer my thoughts on it.

Hell, I've had these trucks exhibit long cranking with an aftermarket oil filter installed, because it allows the low pressure oil system to drain back, and it has to fill that all back up again before it fires off the high pressure system.

 

ok it did start when it cooled. What will it take to fix this problem