Cumins isx 15 NEED HELP AND ADVISE

[tree98]

Oh boy, you have the 559 code and your still driving it ?? The symptoms you describe are exactly what happened in this unfortunate case

https://rawze.com/forums/showthread.php?tid=1805

This is not good at all. It's quite possible your fuel pump is failing and sending metal particles through your entire engine! The internals of that pump must be replaced around 400K and you have 450K !! Take your fuel filter off right now, cut it open and look for metal particles( might not even have to cut it open) I'm not an expert on this exact situation but I think if you catch it within about 300 miles the engine can still possibly be saved if you can tow it to Mr. Haggs down in Georgia. And YES this situation is THAT SERIOUS, DON'T TAKE THIS LIGHTLY!!!
Also you have a bad program in your truck but that's not your biggest problem right now.