no power
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Tuned
Joined: Apr 2006
Posts: 331
Likes: 4
From: grorgetown,in
no power
ok lets see if this tells anybody anything. the truck is an o3 with 227k on it. injectors and ficm was changed at 180k. truck starts up but wont rev over 1200 rpms. checked icp and ipr. truck is at 700psi at the icp and 31% ipr at idle. take throttle to 1200rpms and icp goes to 560 and ipr goes to 85%. does this mean there is a major oil leak and or hpop took a dump? truck was fine then all of the sudden it went to crap. also i stuck a new egr in cause i had one laying around. and old one was open a little and looked like crap. i do get a code of icp low. any help would be great. i know the 7.3 good but new to the 6.0. any help would be great. willing to try anything just would like an idea where to start. thanks for any help. and i do have a scan tool. i have a telstar tester. also once you step on throttle when icp is at 560 when you let off gas icp goes to approx. 1300 before returning to about 700psi. engine is cool while im doing this also. after it runs awhile then shut it off it is an act of god to get started again once it starts warming up. i guess cause the oil is thinning out.
Posting Guru
Joined: Apr 2005
Posts: 1,035
Likes: 2
From: duncan oklahoma
you probably have a snap to fitting internal o-ring letting go or the seal in the pump is failing.when cold the oil is thick enogh to overcome the leak. when hot it thins out and the pump cant build the required pressure.i air test my pumps by blocking off the oil feed hole and shot shop air to the pump and find the leak.probably gonna be the pump and supply tube.good luck
FTE Fan
Joined: Jun 2007
Posts: 344
Likes: 1
From: Winder, Georgia
Hope that helps.
Thread Starter
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Tuned
Joined: Apr 2006
Posts: 331
Likes: 4
From: grorgetown,in
yeah its an 03. i took cover off and did put air in where you stated.. might know the first one i choose to help with is a p.i.t.a.. thanks for the number cause i will change the rings while im that far.
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Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
you dont have a STC fitting on an 03
Did you do any work to it recently maybe an oil change anything
Did you do any work to it recently maybe an oil change anything
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Hotshot
Joined: Apr 2010
Posts: 19,072
Likes: 243
From: Saratoga Springs,UT
If it was the HPOP I would think when you put shop air to it the air would have bubbled up thru the oil filter
Did it blow air up threw the oil filter??
Or does the HPOP have alot of end play??
in 03 the pumps were the weak link
Ohh did you pull the IPR and check it out
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Tuned
Joined: Apr 2006
Posts: 331
Likes: 4
From: grorgetown,in
the pump does have some end play in it. not sure exact amount but i think it should have very little or none. i looked at ipr but dont really know what im looking for. the screen is a little caved in if that tells you anything. oh and when i put air in the top of pump i dont hear air any where.
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