I have no idea why you put an 06 part in an 03 truck but what ever works for you.
the ipr did not set a false code. your crank code came from cranking the engine and it not starting.
you may have trash under the oil cooler that is being pased into the pump. no need to replace the pump just the valve.

 

Thank You very much, realy appreciated.
Tommy

 

Cheezit: How do you clean the oil rails on a 2003 6.0? Had to change out the hpop again, put in a 04 IPR, now I am having injectors sticking, appears to be casting sand, and hpop parts issues. drove it, raw fuel smoke from under the hood, scan code, #8 injector stuck open. Should i pull the injectors again and have them cleaned and tested?

 

break clean and compressed air is the only way. never delt with sublet injector testing so have no awnser on that