2005 EGR/Oil cooler replacment - Ford Powerstroke Diesel Forum
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Old 03-30-2013, 09:31 PM
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2005 EGR/Oil cooler replacment

so my neabor had a bad egr/oil cooler so we replaced it will Ford OEM parts.Well also replaced the stand pipes and dummy plugs which for some reason looked totally different then what was provided to us..Is there a differance between the 05 to 06 stand pipes????we also replaced the little screen on the sensor on the back of the motor by the turbo..

Well motor started and ran after cranking for about 10-12sec and pulled a code p0046 which was the vgt sensor..Damn bare wires were showing so we fixed that wirering problem and now the truck continues to take forever to start..

what could be the problem on why the truck continues to take for ever to start???

Please help as were trying to get the truck fixed for monday.

thanks guys.
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Old 03-30-2013, 11:23 PM
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ok what you need to do is get a scangauge or simular on it and watch your ICP pressure as you crank it.
Truck should pass the 500psi very quickly like a few seconds if the hpo system is tight.
Try that first and see where that is at. Does it take same amount of time to start right after you shut it off ?
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Old 03-31-2013, 09:17 AM
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well if you wait about a min and try to refire it takes some time but if you restart it right away if fires right back up..I will see if they have a scan tool.. Cant i try to unplug the ICP electrical fitting and see if it fires up???



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Originally Posted by mhatlen View Post
ok what you need to do is get a scangauge or simular on it and watch your ICP pressure as you crank it.
Truck should pass the 500psi very quickly like a few seconds if the hpo system is tight.
Try that first and see where that is at. Does it take same amount of time to start right after you shut it off ?
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Old 03-31-2013, 10:53 AM
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Originally Posted by allmotor65stang View Post
Cant i try to unplug the ICP electrical fitting and see if it fires up???
That is only a check for the ICP sensor. It would run like crap with the ICP sensor off or broken, but it would idle nicely unplugged.

The slow start issue needs testing of IPR and ICP values. Since you changed a few things, it could be work (sorry), but it could be unrelated. The stand-pipe you got was probably the updated one, that is why it looked different.

Since you changed the IPR screen, my best guess is you have a bad IPR. If the screen had been damaged, the very small debris can jamb the IPR. The value you see is not the actual position, it is the voltage commanded position.
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Old 03-31-2013, 11:05 AM
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Mine ended up being the oil rail plug the o-ring went out on it causing the engine to crank over for a good 10 seconds before the engine fired up.
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Old 03-31-2013, 12:59 PM
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We just installed the new style dummy plugs and stand pipes.Even tho the old ones we pulled out were a totally different look then the new style ones i cant see that being the problem..

I tryed my SCT programmer to do some datat logging but it will not ready the sensors i need it to.Whats a good scanner for data logging???

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Originally Posted by doombugie View Post
Mine ended up being the oil rail plug the o-ring went out on it causing the engine to crank over for a good 10 seconds before the engine fired up.
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Old 03-31-2013, 08:40 PM
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well we just let the truck run and flushed the collant and put some miles on it and now the truck fires right up..we will se how it gose in the morning i guess.
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Old 04-01-2013, 07:49 AM
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You never really told us how long your priming cranks were. It might have just been air still in the HPO system. As well, if you didn't add oil to the rails before closing it up, you would have more air to deal with. Let's hope it was just still purging air.

For my latest injector upgrade I primed the rails, gave it 2 dead cranks of 20-30 seconds, then a live crank of about 10 seconds until it fired to an almost normal idle. I took it for a short drive with a few high ICP runs. The next morning it took about 6-8 seconds to start and I drove it for 40 minutes. After that, it fires to life every time after1-2 seconds of cranking.
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