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Power Strokes
6.0 Tech
6.0 Long Crank, Rough Idle when cold.
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[QUOTE="Buffalo444, post: 1081915, member: 1303"] Yes, had been sitting overnight. FICM voltage was all good, 47.5 volts at the lowest, normally 48.0-48.5, didn't drop when cranking or anything. So I unplugged the ICP sensor to see if that was part of the culprit... it helped... somewhat. The truck cranked for 3-5 seconds every time, started better but didn't have the hesitation (as bad) that it did. Seemed to have helped until one morning I started it, put it in gear and it stalled out immediately... so I plugged it back in and not much changed. I put Rev-X in it about 50 miles ago. It has smoothed out a little, but it still has the stalling problem and a still that slight bit of hesitation it had, but not nearly as bad, like the on/off switch like way it did before. Just the other day, I had it stall, restarted it and revved it up to 1250 rpms for a second then put it back in gear and it drove away fine... I'm pretty well stumped at this point. It got a new HPOP before I got it... could it be IPR related? or does Ford install a new IPR with the HPOP? [/QUOTE]
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6.0 Long Crank, Rough Idle when cold.
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