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Old 08-26-2013, 11:38 AM
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SLOW Crank No Start

Okay Guys this might be a long read but I want yall to know everything I know about this truck.

I bought this 2005 F350 6.0 from my Grandparents. They used the truck for 170k miles for traveling and pulling a 16 ft cargo trailer every once in a while. Also pulled a 30ft 5th wheel travel trailer on church missions to mexico and stuff every few years. Then the truck started getting used less and less. Parked in their back yard and sat. Heavy rains came and they decided it needed to be moved in the driveway. So they got a hot shot teen age cousin to move it. It was stuck in the mud. He tried and tried. No luck. He tried until the thing just would not start anymore.

Finally they got it towed to ford to a shade tree ford power stroke "expert". I do not doubt his work. Heck, he had nearly 10 superduties at his shop. But shade tree in every way possible.

I replaced both Fuel Filter.
I checked the FICM with a multimeter and am getting 47.5 volts KOEO and while Cranking.
I installed a new starter and 2 new batteries.
The oil filter housing takes about 27 seconds to fill with the filter removed.
I purchased a Scan Guage II and am getting the following reading:

IPR 85%
ICP 3-30 PSI (very low), when I spray ether it almost wants to start but doesnt (i get occational over 500 PSI with ether)
FICM SYNC 1 (good)
FICM 47.5

So at this point I order a bunch of UPGRADED FORD parts that are associated with this HPOP system.
-dummy plugs
-stand pipes
-stc fitting
-turbo install kit
-turbo oil drain tube
-oil cooler
-external remote coolant filter system
-fuel pressure regulator kit (upgraded to increase injector psi)
-and all the gaskets and o rings needed for all of these parts and kits.

I really thought it was going to be the STC fitting. But the STC fitting was not loose. It did twist but did not wiggle or come loose at all. A matter a fact the the dummy plugs and the the stand pipes and all o rings and gaskets look great. almost perfect. no signs of wear. EXCEPT the oil cooler screen was ripped. The IPR screen had 3 little tiny pieces of something there but not enough to cause blockage.

Now I do not want to put it back together until i can find figure out what else could cause the low PSI in the HPO system. With the rocker boxes off can i crank it over to check for leaks this way or is this a bad ideal? Then I will pull the Oil Rails off and look at the nipple cup o rings and fuel injector o rings.


Any ideas what else I could be looking for.
Once I get it back together I will put a check the fuel pressure with a gauge.
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Old 08-26-2013, 09:27 PM
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85% ipr means your oil pressure is trying to pump all oil to injectors because high pressure oil system leak...

ipr voltage should never be below 15% and/ or above 85%


he explains the ipr% during video
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