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I have an early build 04 with the ICP in the back, but I did have the exact same problem as you describe. I would be going down the road and the truck would just completely shut down. I would pull over, cycle the key off then on, and it would start right back up. I ended up replacing the main injector harness due to some bad wire chaffing. This happened shortly after I first bought it with 99k on the clock.
I would look over the wiring for places that it could be rubbing, and look closely at the harnesses. Hope this helps!
I have an early build 04 with the ICP in the back, but I did have the exact same problem as you describe. I would be going down the road and the truck would just completely shut down. I would pull over, cycle the key off then on, and it would start right back up. I ended up replacing the main injector harness due to some bad wire chaffing. This happened shortly after I first bought it with 99k on the clock.
I would look over the wiring for places that it could be rubbing, and look closely at the harnesses. Hope this helps!
Thanks I was planning on doing that this weekend haven't had much time to mess with it lately
That can help direct us to an answer if we pursue an actual issues with low pressure in the high-pressure oil system. You have a late model 04.
Greg has posted up the path to resolution of this - get a scan tool where we can see engine readings:
ICP pressure
ICP volts
IPR% duty cycle
If you do have low pressure in that system, it could very well be leaking dummy plugs (early 04's don't have dummy plugs), or it could be the IPR valve. Hopefully it does not turn out to be the pump. Get the readings first though, we don't even know if it is with the high pressure oil system.
Another thing to watch is FICM volts (MPower, VPower, and LPower readings). Get these readings KOEO, cranking, and at idle.
Plenty of good phone apps out there for getting readings (Torque, Forscan, Dashboss, etc). You will need an adapter for the OBDII port, but this is the cheapest way to go. Some people get the ScangaugeII also.
What's the best OBDll adapter to get. I have an iPhone .
Probably DashBoss, but I can't recall if Forscan has an iphone version or not.
ok I think I figured it out the app said got to the web site so I did and there showed me the whole set up . Kinda new to this tech stuff it will take me a little bit but I'll figure it out soon
Thank You
ok I think I figured it out the app said got to the web site so I did and there showed me the whole set up . Kinda new to this tech stuff it will take me a little bit but I'll figure it out soon
Thank You
Well it ended up being the HPOP 😰 $1800 later will make you upset