motleycrew
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- Sep 16, 2011
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HI guys,
Truck is an 06 King Ranch. Start it up cold, it runs rough for a few minutes then smooths out. Will hold 3500psi oil pressure under full load WOT. Once it's warm it will not restart. I'm talking like shut if off, then within 2 seconds try and fire it up, it won't do it. The engine barely stops and I try it again. NO GO. Builds less than 200lbs when cranking. Run it wide open 3500psi. Shut it off and immediatly restart - 150psi.
It won't build oil pressure at this time. Cools down, fires up and good to go, carrying the 3500 as long as you don't shut it down.
It has new injectors, ALL orings in the HP system are new. Upgraded standpipes and dummy plugs resealed.
I have tried multiple USED hpops and IPRs, all with the same result. I even just tried another old FICM after I got it hot. Confirm the no start, swapped FICMs, nothing.
I also have tried several oil filters. This oil filter stand is broken at the top, it does not have the bypass valve or whatever goes in the very top. Is this needed for my particular problem? The drainback in the bottom still functions. It will fill the oil filter housing within a couple seconds of cranking during this no start problem.
Airleak it hot, and you can hear a little hissing out at the pump, but I have heard that on every 6.0 I've worked on.
Can a bad HPOP still carry max pressure anytime, but cause a no start hot? I have never personally seen one that will hold max pressure, but cause a warm no start. And what's with the chuggle during a cold start until it warms up?
I have an extra confirmed bad pump. If anyone could point me in a direction of dissasembly of the HPOP itself, I would be grateful. Seems to be pressed togather....
thanks everyone,
mike
Truck is an 06 King Ranch. Start it up cold, it runs rough for a few minutes then smooths out. Will hold 3500psi oil pressure under full load WOT. Once it's warm it will not restart. I'm talking like shut if off, then within 2 seconds try and fire it up, it won't do it. The engine barely stops and I try it again. NO GO. Builds less than 200lbs when cranking. Run it wide open 3500psi. Shut it off and immediatly restart - 150psi.
It won't build oil pressure at this time. Cools down, fires up and good to go, carrying the 3500 as long as you don't shut it down.
It has new injectors, ALL orings in the HP system are new. Upgraded standpipes and dummy plugs resealed.
I have tried multiple USED hpops and IPRs, all with the same result. I even just tried another old FICM after I got it hot. Confirm the no start, swapped FICMs, nothing.
I also have tried several oil filters. This oil filter stand is broken at the top, it does not have the bypass valve or whatever goes in the very top. Is this needed for my particular problem? The drainback in the bottom still functions. It will fill the oil filter housing within a couple seconds of cranking during this no start problem.
Airleak it hot, and you can hear a little hissing out at the pump, but I have heard that on every 6.0 I've worked on.
Can a bad HPOP still carry max pressure anytime, but cause a no start hot? I have never personally seen one that will hold max pressure, but cause a warm no start. And what's with the chuggle during a cold start until it warms up?
I have an extra confirmed bad pump. If anyone could point me in a direction of dissasembly of the HPOP itself, I would be grateful. Seems to be pressed togather....
thanks everyone,
mike