I do not have any loss of coolant. One of the dealer techs. Pressurized the HPO system and said that there were no leaks. As far as the LPO system as I said before the filter housing fills up instantly when cranking if the drainback valve is held shut.

 

Just because they did a leak check does not necessarily mean you have sufficient pressure. Maybe the pump or IPR is bad ..............

 

I will check the icp the ipr

 

I checked the ICP voltage today. The engine was hot from driving home from work though. The engine cranked as it should. The ICP voltage was .85vDC with engine running and .88vDC while cranking. I read somewhere that the voltage with just the key on the voltage should be around .24vDC. It was .25vDC. I have not tried to check it on a cold start yet. I will check it tomorrow at work. When cranking the oil pressure gauge does not move until the engine starts, however like I said yesterday the oil fills the filter housing quickly. As far as the level of the truck when cranking. I know there is supposed to be about a quart of oil in the HPO reservoir for the starting of the engine. Is the a check valve in the system that is allowing the oil to drain out of the reservoir when on level ground or facing down hill. I also noticed tonight when I was workink on it that when just the key on and the fuel pump doing its normal priming that there was a hissing noise coming from the engine mounted fuel filter. Is this coming from the vent or is this a problem? Thanks for everyones help so far.

 

your volt readings sound a bit low. the specs are KOEO: .2v low idle: 1.0v high idle: 1.9v

 

New starter?

Had this on my '05. Sometimes it would fire right away, other times I could crank forever with no smoke out the exhaust. Checked everything from fuel to oil to HPOP to going back to Ford filters and nothing.

One of the ears broke on the starter so I replaced it, problem went away. Don't know if it was related or what, but it worked.

I was at the point that I would let it idle for extended periods because I didn't know if it would start again. I could cycle the glowplugs 2 or 3 times and it would still crank for too long then fire.

 

I checked the ICP voltage again today with the engine cold. With key on it was still .25vDC. While cranking voltage was .45vDC when it started. Running at 800 RPM ithe voltage was .88vDC. I thought it had to be a minimum of .8vDC to start. I measured this with a fluke on the pig tail. I will check the starter teeth tomorrow like suggested. I am at a loss. I don't understand.

 

icpv .19-.24v koeo
.80-85v at idle.

Your values look adequate to me.

There is not supposed to be any "hissing" from your secondary fuel filter. You need to figure out what that is. You might consider installing a fuel pressure gauge.

 

Cranked it the other day when it ad been sitting for about six hours on flat ground. The whole time that it was turning over the voltage was .45 vDC. When it cranked voltage jumped to .87vDC. I thought the voltage had to be a minimum of .8vDC to crank. Can anyone explain?

 

I upgraded the fuel pressure regulator spring and changed all related seals. The hissing went away and so di the raw fuel smell. I still have the same cranking problem.

 

I was having the same exact cold start problem with my 06 F350... I'd let the glow plugs cycle 3 times just to make sure they were warm... No change... The problem didn't get any better even after changing every filter and oils in the truck...

Long story short and 3K miles later, I was driving down thru Delaware at 65mph and came up to a traffic light, let out of the hammer went to get back into it and wham, the truck just shut off dead. Cranked, and cranked. Nothing. Towed it to the dealership and they diagnosed it as a broken high pressure oil pump. They replaced the pump and all the fittings. The truck now starts like a gas engine even on a 25 degree PA morning letting the glow plugs cycle once...

Thank god for the 5year/100k warranty!

 

Thanks for sharing GoFastMav! Reps given!

This thread contains a few things that are VERY frustrating!

The first is that the OP failed to mention in POST #1 that a leak check was done in the HPO system. It is very important to include all the pertinent info. Leaving out this tidbit is hard to understand, but OK, it happens.

The second is NO post back on a solution.

 

I have not posted a solution because I still have the problem. I wish I had a solution. The last thing that I did was Check the LPO regulator valve To make sure that I was not having a problem there at start up. It still happens only when on flat ground or facing down hill. To me that sounds like a check valve is allowing LPO, HPO, or fuel to bleed off.

 

I said that the HPO was pressurized with no leaks in my reply to your first question.

 

Cheezit knows the solution to the problem. He posted it earlier in the year for a similar problem where the truck wouldn't start level or facing down hill. It's a rather unique thing and I don't remember the solution, but shoot him a PM and I'm sure he'll know.