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Power Strokes
7.3 Tech
intermittent power, lots of idle noise
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[QUOTE="mandkole, post: 550993, member: 4630"] Defintely have an unhappy cylinder(s) and sounds very much like an ICP issue. Angry IPR, pressure leak (oring), etc. I would think that the ICP reading is going wild while its idling. Running the motor with the VCs off gives you more to work with and see. It doesnt make too much of a mess, but can get a little oil splash, collect at the bottom of the head and try to spill over. Pulling one injector at a time can help determine if an individual injector is at issue. You can also look for oil bubbling up around an injector Have you pressure checked the oil rails' ability to hold ICP? Deadhead each head and pressurize through a check valve to 3K. Should hold for 4-5 minutes. [/QUOTE]
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