Join Date: Nov 2012
Location: Mississippi gulf coast
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How do you diagnose a IPR failure?
I think the IPR is goine bad on the 6.0 I am working on. The truck is a 2006 F250. I rebuilt the engine 6 months ago. The engine got new rod and main bearings, new piston rings, honed all 8 cylinders, new low pressure oil pump, all new roller lifters, hpop fitting and dummie plug update kit. The hpop oil rails got new standpipes with all new orings.The owner did not want a new turbo, new hpop, or new injectors.
He called me thursday and said his truck would not start. He pulled up to a gas station to buy fuel and the truck would not start after he bought fuel. He had the truck towed to my shop. I ran jump cables from my truck to his because his batterys were almost dead. I guess he cranked on it for a while. I hooked my lap top up to it and monitored the injector control pressure, and icp regulator % while cranking. The ICP regulator was at 87% while cranking. The injector control pressure was at 45lbs. The Injector control pressure began to slowly rise after the third attempt to start. It got to 300lbs and the truck started to fire. I kept trying to start it and it got to where it would start running and die immediately. It did that 3 times and then it stayed running. I shut if off and restarted it several times. While running the Control pressure was around 890psi at idle. The ICP regulator was at 27% at idle. Is there any way of checking the ICP regulator to see if it is on its way out?
Caterpillar Level 3 Diesel Tech
1991 Ford F250 7.3 IDI
All aluminum radiator
1 ton axle and suspension
koenig rawson tool bed
Custom 1/2" thick front brush guard/bumper
1991 F250 7.3 IDI
Awaiting 5 speed transmission swap and banks turbo install.