Compression Ignition Addict
Join Date: Feb 2011
Location: upstate ny
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The low pressure oil system is used to provide oil to the high pressure system, as well as provide lubrication. Therefore, if you have no low pressure oil, you have no high pressure oil either. The 03's had issues with the check ball falling out of the HPOP causing poor LPO. If you pull your oil filter, and depress the ball in the middle, how fast does the housing fill up while cranking?
Definately sounds like a high pressure oil leak, but how about posting the IPR duty cycle and ICP pressure when it won't start? Have you tried commanding the IPR closed with AE and seeing if pressure builds? The IPR could be bad/stuck. Is the screen ripped?
Give us some more info!
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2005 Lariat CCSB F-350 SRW
300,000 miles and going strong
12" fabtech lift with 40" Xterrain's on M/T classic locks, Adjustable track bar, Bilstein 7100 reservoir shocks
Edge juice/attitude CTS, SCT with ID tunes, Snow meth. injection, Diamond eye 4" exhaust, 03 turbo, ARP studs, Sinister coolant filter
2010 stone seats/console, pioneer avic d3 with backup camera/bluetooth
Viair 450c compressor, dual 2.5 gallon tanks, air horns rated @115db