38ryr88 Posted August 10, 2008 Share Posted August 10, 2008 I have an 03 F-550 6.0 117k miles.that was towed in for a crank/no-start.Vech started up all no-start pids were good. Test drove for approx 30 min before I could duplicate. On a mild grade I could feel the eng start to cut out but didnt stall. Icp voltage became erratic dropping below .8 volts each time the eng cut out. Icp pressure remained close to desired for the rpm. Ipr ramped out to max each time. I pulled off the road to turn around and the vech died. Attempted to re-start and vech would crank but no start. Icp pressure would only climb to approx 215 psi with ipr at 84% Icp voltage would still vary betwwen 1.4 volts down to .6 volts cranking. All other no-starts pids were within spec. This is my first early build I have had for a hp oil concern. Any tips would be greatly appreciated. Quote Link to comment Share on other sites More sharing options...
jaysonfordtech Posted August 10, 2008 Share Posted August 10, 2008 First off check the ICP sensor for oil passing through, and a melted connector. That was very common. Next I would wiggle test while cranking to see if it is a chaff in the harness. Quote Link to comment Share on other sites More sharing options...
Alex Bruene Posted August 10, 2008 Share Posted August 10, 2008 What is the KOEO ICP voltage? Quote Link to comment Share on other sites More sharing options...
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