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I have a 2000 250 SD 7.3 with 280,000 on it, It been strong running truck but has an issue I can't seem to find.
Every once in awhile, (sometimes 4 times in a row) the engine while driving, acts like its running on 4 cylinders but does not shut off, but looses all engine power. I put it in neutral, shut off completely, then re-start it, sometimes this clears it up and runs fine the rest of the day.
What I have done so far:
changed the under valve cover harness, glow plugs, glow plug relay, exhaust back pressure sensor tube (this was broke in 2) cleaned the back pressure sensor, removed the IPR and disassembled and cleaned + add new orings, replaced the ICP sensor (it was leaking oil).
I run the AE, all the cylinders during the buzz test test ok, comp tests ok.
Only P1316 shows up as the codes.
Could this be a ICM going bad? I hope that anyone who experienced this before can help, it is dangerous when pulling a trailer or in heavy traffic / Mountain passes.