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Power Strokes
7.3 Tech
Can certain oil instantly ruin an IPR
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[QUOTE="ghohouston, post: 1495616, member: 9421"] I had one really throw me for a loop. Cranking would build 500 psi icp, then drop. I said ipr, so the guy replaced it. No luck. Unhooked hpop lines, no leak down. Watched injectors with vc's off, no problems. Pulled injectors to look at o rings, no problems. Put original ipr back in, still no start, build 500 psi, then drop to like 20 ish. Deadheaded the pump, and it would still build 500 psi, but no more. I didn't have a pressure relief on the gauge. Swapped an old hpop I had laying around, and fired right up. That was the 2nd hpop this truck had in like 230k miles too. In my experience, USUALLY when an ipr dies, sticks, whatever, you will build 200-250 psi icp, but wont go past that area. [/QUOTE]
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Can certain oil instantly ruin an IPR
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