'03 6.0 Cranks cold then cranks No start till cools off ?

[badasstexasgirl]

HELP.... This crazy thing has done it to me agian, just started this, truck will start and run like a charm cold. Drive to store turn it off come back 20 min just cranks but won't start acts like not getting diesel. I checked it's getting diesel good pressure ? so wait a hour and it's cooled off cranks fine ? ANY HELP 4 poor girl in Texas ?

[DieselFam]

This same thing happened to my 2006 6.0L last summer. It has something to do with a solenoid(?) on the engine that allows diesel to squirt in and start the engine. A diesel mechanic would know immediatley what it was. I can't remember what exactly it is, but the dealer fixed it for me in less then a couple of hours. It was still under warranty. Sorry for not being a bigger help.

[WEWILLE]

You mean it cranks slow when its hot?? Or it cranks normal and wont start? Whats your icp, ipr% ficm voltages and fuel pressure?

[DryHeatDude03]

bad ipr valve and/or HPOP going