won't start when warm
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Senior User
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won't start when warm
6.0L excursion 2004 built 9/25/2003
When it has been running it won't restart for about 4 hours.
I understand this is probably a high pressure oil leak.
I am a little confused on the difference between ICP and IPR.
How do I know where to start? Should I pull the IPR and check to see if the screen is broken.
How do I rule out the HPOP.
I saw the powerstroke help dude on youtube 6.0 HOT START ISSUES - HIGH PRESSURE OIL PROBLEMS - YouTube but it seemed that this was for a later version than my engine.
Thanks a bunch.
Steve
When it has been running it won't restart for about 4 hours.
I understand this is probably a high pressure oil leak.
I am a little confused on the difference between ICP and IPR.
How do I know where to start? Should I pull the IPR and check to see if the screen is broken.
How do I rule out the HPOP.
I saw the powerstroke help dude on youtube 6.0 HOT START ISSUES - HIGH PRESSURE OIL PROBLEMS - YouTube but it seemed that this was for a later version than my engine.
Thanks a bunch.
Steve
Master of Strokes
Joined: Mar 2007
Posts: 6,808
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From: CA
You have a very small chance in your early build motor to have a HPOP leak. Have you looked at Duty cycle or ICP pressure to see where your at when trying to start? I would almost try a new CPS sensor. My 6.0 was having problems like you described and it turned out to be a CPS.
Hotshot
Joined: Dec 2003
Posts: 15,368
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From: Stuttgart, Ar
ICP = injector control pressure sensor. The sensor that reads the pressure of the high pressure oil system and sends the information to the PCM.
IPR = injector pressure regulator. This is the valve that actually regulates the high pressue oil as desired by the PCM. It variably opens and closes to raise and lower the HPO as the injectors need more or less depending on engine load.
You are going to need something to monitor the ICP, ICP desired, and IPR duty cycle. To test for an HPO leak you can use an air test but it's not simple on the early style 6.0 motor.
Have you had the vehicle code scanned?
IPR = injector pressure regulator. This is the valve that actually regulates the high pressue oil as desired by the PCM. It variably opens and closes to raise and lower the HPO as the injectors need more or less depending on engine load.
You are going to need something to monitor the ICP, ICP desired, and IPR duty cycle. To test for an HPO leak you can use an air test but it's not simple on the early style 6.0 motor.
Have you had the vehicle code scanned?
Hotshot
Joined: Apr 2010
Posts: 19,055
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From: Saratoga Springs,UT
Didnt you just put in a new oil cooler awhile back
Have you checked the oil fil;ter drainback?????
Have you checked the oil fil;ter drainback?????
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Hotshot
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From: Saratoga Springs,UT
Unplug the ICP sensor and see if it starts
If you find the pigtail oil soaked or anything it needs to be replaced
may not be it since its a no start hot this is usually an 05+ problem since it doesnt have standpipes and STC fitting it does have standpipes but not lke 05+
the Drainback is in the Bottom of the oil filter housing, when you pull the filter for a oil change or whatever it pops up and lets the oil drain stick a screwdriver down there and make shure it moves freely
did you do anywork since the oil cooler???
do you have any gauges
If you find the pigtail oil soaked or anything it needs to be replaced
may not be it since its a no start hot this is usually an 05+ problem since it doesnt have standpipes and STC fitting it does have standpipes but not lke 05+
the Drainback is in the Bottom of the oil filter housing, when you pull the filter for a oil change or whatever it pops up and lets the oil drain stick a screwdriver down there and make shure it moves freely
did you do anywork since the oil cooler???
do you have any gauges
Elder User
Joined: Dec 2010
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From: LA = Lower Alabama
If you have a late build 04 motor it's on the passenger side valve cover on the front. I see your build date, but I don't remember when the late build started. If it's an early build, it's more difficult to get to under the turbo.
Late build location here -> where is the ICP Sensor located on a 2003 f-350 6.0 turbo diesel - JustAnswer
Yes, you can drive it with it unplugged, but not recommended. If it starts (after a no start), you'll know that's the issue, so just go get one from the dealer. Price isn't too terrible, or you can order from www.partsguyed.com or www.tousleyfordparts.com.
Late build location here -> where is the ICP Sensor located on a 2003 f-350 6.0 turbo diesel - JustAnswer
Yes, you can drive it with it unplugged, but not recommended. If it starts (after a no start), you'll know that's the issue, so just go get one from the dealer. Price isn't too terrible, or you can order from www.partsguyed.com or www.tousleyfordparts.com.
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I unplugged the ICP and it still won't start.
How do I know if it is the IPR? Would a bad IPR throw a code.
I'll check the drainback valve.
I vaguely remember when I changed the oil cooler and deleted the egr that it seemed like some people were replacing gaskets on that tube that went into the bottom of the turbo. That seem like a possible problem to anyone?
How do I know if it is the IPR? Would a bad IPR throw a code.
I'll check the drainback valve.
I vaguely remember when I changed the oil cooler and deleted the egr that it seemed like some people were replacing gaskets on that tube that went into the bottom of the turbo. That seem like a possible problem to anyone?
Fleet Owner
Joined: Nov 2003
Posts: 27,881
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From npccpartsman:
A scangaugeII is a good investment to monitor the above parameters. If you have more funds available, an AutoEnginuity is even better. That being said, it may very well come down to being a leak in the HPO system which will require a bit of "tear down" work.
Also, there is a no-start sticky in the tech folder that discusses the air pressure test if you want to dig into it that deep for yourself.
You are going to need something to monitor the ICP, ICP desired, and IPR duty cycle. To test for an HPO leak you can use an air test but it's not simple on the early style 6.0 motor.
A scangaugeII is a good investment to monitor the above parameters. If you have more funds available, an AutoEnginuity is even better. That being said, it may very well come down to being a leak in the HPO system which will require a bit of "tear down" work.
Also, there is a no-start sticky in the tech folder that discusses the air pressure test if you want to dig into it that deep for yourself.