IPR Short ??
I have isolated my no start when hot to my IpR . When my engine is hot my 7.3 won't start . I read somewhere somebody hit it with brakeclean to cool it off and it started .So i was towing with horse trailer and stopped for lunch and no start . I sat for a bit and decided to pour a trickle of cool water on the ipr and voila started up and no issues. I have done this many times since .The solinoid seems to move a little around in spacer . going to pull off spacer and check connections .
Just done to my 2003 excursion 387,000kms
new fuel filter
new cam sensor
new icp sensor
truck runs great other wise . fuel millage even from new has never been outstanding . Do ipr's get shorted out . It starts instantly after pouring water on it . I know ,replace ipr ... just trying to understand the circuit more .