2005 Crank/No Start - Ford Powerstroke Diesel Forum
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Old 05-29-2013, 04:09 PM
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2005 Crank/No Start

I have a 2005 F-350 with 186,000 miles that is a crank/no start.
I will try to sum this up so you have some background on this situation. I removed the engine a couple weeks back to install new head gaskets and ARP studs because I had constant degas bottle puking while towing (well over 18 psi under load) Unfortunately for me, I had to get two new heads because I had multiple cracks in the exhaust valve seats extending to the glow plug holes as well. While engine was out I replaced rear main seal, front crank seal, resealed timing cover, rear engine cover and bedplate as well. Replaced crank and cam sensor, block heater because they were easy to get to and why not after all the money I have dumped into it thus far. I had the oil cooler out to get it out of my way while working on the engine, the oil cooler was replaced not long ago as well as I had a 15 degree difference in oil and coolant temps. The STC fitting was changed previously, as well as updated stand pipes and dummy plugs. Therefore, I didnít remove the HPOP while the motor was out. So to make a long story short, I get the motor installed, reassembled and crank it and it starts. Seems to run good and starts consistently. Wife even drives it to Wal-Mart and back! The next day is when I get the crank/no start. So back into the engine I go. Low oil pressure is good (housing fills fast with oil and motorcraft filter and cap installed). So I perform an air test and command IPR closed with 12V. I hear no leaks whatsoever, very quiet. The HPOP did gurgle when the IPR was uncommanded. I used a long funnel to aid my hearing as well. I installed a manual pressure gauge in the ICP port and there is 0 PSI while cranking. This leads me to believe the HPOP or IPR has failed due to the fact there is 0 PSI being generated, but I am just not 100%. So with that I have a few questions:
1. Even though the IPR closes when 12V is applied, could it still be bad?
2. If the HPOP has failed internally, would I detect any air leakage? Anyway to check HPOP to ensure it is the weak leak?
3. If I had a leaky o-ring on an injector, could I hear that through the hole in the valve covers? Would a leaky o-ring on an injector cause 0 psi?
Any suggestions to help me pinpoint this down are appreciated. Thanks in advance for the help.

Jeff
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Old 05-30-2013, 08:55 PM
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I would pull the ipr, chances are something was knocked loose during the work and took out the screen on the ipr. Hole in screen = no start. It happened to me after an oil cooler change. Ran great for 2 hours then died. Easiest to check ipr out first before pulling hpop.
Gb
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