Short version.....Towing up mountains from Tn/NC, truck pulling best it has ever pulled, then just shutoff, never to restart. Had towed to dealer, this is what I got; Ran performance test found low ICP HP SYS building 38 PSI possible IPR stuck open.....So can anybody tell me what that means in simple form?

Thanks

 

tjustice this means you don't have enough oil pressure to fire the injectors . What year truck . Where in east TN are you ?

 

In between Johnson City and Bristol.....so looking at HPOP? Truck is disassembled for head gaskets and various other parts at the current moment.....

 

Sorry, 2005......

 

How did it go from oil pressure issue to head gaskets?

 

Missing coolant in Degas bottle...Which turned out to be the case, they was leaking not bad but still leaking.....Wasn't original issue, just trying to fix all at once, while had some spare $$$$$ and time.....

 

You should consider BulletProofDiesel - Darn-Near Bullet Proof Diesel Products for your 6.0 while your at this point.

 

So a failed IPR? Replace it and be on your way.

 

Could easily be an STC fitting since it's a 2005.

 

STC fitting was upgraded about a year ago....

 

Hard to say without more info. I'm thinking air test to narrow down a leak, or possibly HPOP.

 

I hope yyour using ARP Head studs and OEM Headgaskets

 

Yes sir, going back with ARPs and OEM gaskets, water pump, oil cooler, thermostat, HPOP is there anything else I can do?.....EGR delete was done already (Sinister)

 

Yes there is