6.0 not starting
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6.0 not starting
My problem started on Sat. Started up my '03 88,000 mile F350 and ran around for about a hour and a half, including fueling it up. My wife dropped me off at work then took the truck and parked it. She went out 15 mins. later and tried to start it and it cranked but wouldn't fire. I pulled the upper fuel filter, fuel pressure is good, so oil pressure should be fine too. The truck sat all night. It started right up Sunday, no smoke, nothing didn't act like anything happened. I changed both fuel filters and started and drove it like normal Mon. Tues. and all day today. It started every time, power was fine, I figured I got in some bad fuel. Tonight I was idling around a parking lot, and the truck just died and once again won't start. Cranks fine, plenty of fuel in the top filter, no codes. Any thoughts? Tomorrow I should check my wiring harness for friction marks. My brother insists it is the cam position sen. I am not sure. What do the gurus here think?
Senior User
Joined: Jul 2005
Posts: 139
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From: Henderson, Nevada
I am no expert but two weeks ago I had a similar problem. My Excursion has 68,227 miles. I would try to start it and it would die, start again and no problem. Last week I went on a hunting trip in Ely, Nevada. Towed my trailer and parked it. Two days later when I tried to leave the mountains my Excursion only fired on four cylinders then it died. It finally started and drove fine. Got into town, parked it for a few hours. Went to restart, it would not fire at all. Turns out the FICM (Fuel Injection Control Module) failed. It falls under the power train warranty of 5/100,000. $100.00 deductable. Hope this helps.
Elder User
Joined: Jun 2008
Posts: 724
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From: Sarasota, fl
My first guess would be either wire related problem, ICP and connector, could be FICM, but IMO you looking for HPO related problem.
The CAM basically bulletproof on the 6.0, and you should have DTC if it is the CAM.
Check your wire harness, check your High oil pressure....
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You are right I didn't really explain myself well. What I ment to say was it dosen't miss, or chug or have any loss of power like I would expect with a high pressure oil problem. It is just all or nothing. Which makes me think bad connection or sensor. I will check out the ICP for leaks around it today.
Cargo Master
Joined: Mar 2007
Posts: 3,103
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From: AB/BC
I too would lean towords the HPO system,the oil gets hot and leaks through a seal somewhere.My first guess would be the o rings at the pump(mine was cut through from oil pressure)The ICP would likely cause a surge and stumble at idle.The fact that all is normal until the oil gets hot leads my mind to the HPO.Try to get the oil warmed up then take it home and idle it at 1500 in park with the coolant cap off until hot I would bet it stalls.
Elder User
Joined: Jun 2008
Posts: 724
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From: Sarasota, fl
You are right I didn't really explain myself well. What I ment to say was it dosen't miss, or chug or have any loss of power like I would expect with a high pressure oil problem. It is just all or nothing. Which makes me think bad connection or sensor. I will check out the ICP for leaks around it today.
My truck died on a second, while I was speeding up from a red light. Just like you turn off with the key. No start, nothing, just cranking. It was the HPO pump itself. These "little" pump is working non-stop, building a huge amount of pressure with their 7 little cylinders, and just like anything else, they could give up with no sign at all. Turned out my little screen under the oil cooler was damaged, and probably something got to the pump and killed it.
Anyways, not trying to be smart@$#$, but do not close out something from the troubleshoot list, just because there was no sign.
Cargo Master
Joined: Apr 2006
Posts: 2,153
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From: Concord NC
My 06 6.0 with 30,000 miles has been to the dealer 4 times in the past 2 weeks with them idiots throwing every thing but the sink at it with the same issue you're haveing
. they've changed the hpop, the oil pressure sender, the injector o rings, lpop and it crapped out again yesterday with the same problem. I go to crank the truck and the computer in the cluster just says no oil pressure. if they ever get mine fixed I'll let you know what to fix
lucky for me it's all been warrenty
my oasis report is starting to take on the appearance of a book!!!!!!
. they've changed the hpop, the oil pressure sender, the injector o rings, lpop and it crapped out again yesterday with the same problem. I go to crank the truck and the computer in the cluster just says no oil pressure. if they ever get mine fixed I'll let you know what to fix lucky for me it's all been warrentymy oasis report is starting to take on the appearance of a book!!!!!!
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Elder User
Joined: Jun 2008
Posts: 724
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From: Sarasota, fl
My 06 6.0 with 30,000 miles has been to the dealer 4 times in the past 2 weeks with them idiots throwing every thing but the sink at it with the same issue you're haveing. they've changed the hpop, the oil pressure sender, the injector o rings, lpop and it crapped out again yesterday with the same problem. I go to crank the truck and the computer in the cluster just says no oil pressure. if they ever get mine fixed I'll let you know what to fix lucky for me it's all been warrenty
my oasis report is starting to take on the appearance of a book!!!!!!
. they've changed the hpop, the oil pressure sender, the injector o rings, lpop and it crapped out again yesterday with the same problem. I go to crank the truck and the computer in the cluster just says no oil pressure. if they ever get mine fixed I'll let you know what to fix lucky for me it's all been warrentymy oasis report is starting to take on the appearance of a book!!!!!!
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Elder User
Joined: Jun 2008
Posts: 724
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From: Sarasota, fl
My next clue would be some aftermarket, wrong size oil filter, but I think they wouldn't do that !?
Anyways, I'm sure someone smarter will give you some advice...
Cargo Master
Joined: Apr 2006
Posts: 2,153
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From: Concord NC
if it's the oil filter, they did it. the dealer has done all my oil changes so far. I should have known there was a problem why the crap would anybody sale a truck with 28,000 miles on it if it were running great.... oh yeah sorry for the rant and the hijack 
Elder User
Joined: Jun 2008
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From: Sarasota, fl
<table border="1" cellpadding="3" cellspacing="0" rules="groups" width="90%"> <caption>Symptom Chart</caption><colgroup></colgroup><colgroup></colgroup><colgroup></colgroup><tbody><tr> <th>Condition</th> <th>Possible Sources</th> <th>Action</th></tr> </tbody><tbody></tbody> <tbody><tr valign="top"><td>
- Low oil pressure
- Inaccurate gauge reading
- INSTALL a new gauge.
</td> <td>
- Low oil level
- ADJUST the oil level.
</td> <td>
- Oil dilution (fuel)
- INSPECT the fuel injector O-rings.
</td> <td>
- Stuck open oil pressure regulator
- INSTALL a new oil pressure regulator.
</td> <td>
- Scored/damaged oil pump
- REMOVE the oil pump and inspect.
</td> <td>
- Damaged or misaligned oil filter drain back valve in the oil filter housing
- INSTALL a new oil filter drain back valve.
</td> <td>
- Rear main gallery plug
- REMOVE the transmission/flywheel and inspect.
</td> <td>
- Broken or damaged piston cooling jets
- REMOVE the oil pan and inspect.
</td> <td>
- Front cover gasket leaks
- REMOVE the front cover and inspect the gasket.
</td> <td>
- Missing gallery plugs
- INSPECT for missing plugs.
</td> <td>
- Missing bearing shell(s)
- REMOVE the crankshaft and inspect.
</td> <td>
- Restriction in the pickup tube or oil pan
- REMOVE the oil pan and inspect.
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Just a update in case anyone was wanting answers. I checked the ICP switch and it was leaking oil, so I went to get a new one and found out I was still under war. (my lucky day) so now I am waiting on Ford to get it back to me... Maybe I should have done it myself
Elder User
Joined: Jun 2008
Posts: 724
Likes: 2
From: Sarasota, fl
Just a update in case anyone was wanting answers. I checked the ICP switch and it was leaking oil, so I went to get a new one and found out I was still under war. (my lucky day) so now I am waiting on Ford to get it back to me... Maybe I should have done it myself
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