Hey all new to the forum.. I recently purchased my first diesel being a 6 liter and it's been nothing but problems and the dealer is not willing to help! It's a 2007 F350 lariat.. I had it for 1 week exactly after the dealer did the egr delete and put a new oil cooler in it.. 1 week goes by and it died on me. Found out the ipr was the reason. Then started leaking oil (a lot) found out the dealer used some junk Amazon oil cooler! So finally I had it about 1 month and then got a code for a gpcm circuit issue and was beginning to have "long cranks" before it would start only when it's been sitting for a couple hours. 3 days go by of the long cranking and it died again on the road. Sat for about 30 minutes and cranked it for about 20 continuous second it finally started.. could this be the ipr again? Or the gpcm?? Why would I go thru 2 IPR's in 3 months? Also one last thing.. the diesel shop I go to took the oil cooler out (from amazon) and the screen was full of debre looked like metal shavings.. put in a Dorman I believe.. why would there be so much stuff on the screen?