Cumins isx 15 NEED HELP AND ADVISE

[Kenworth t660]

I will have the vale cover removed and have the inside checked . I will take pix too. I just saw the videos on youtube on how its done and its pretty simple i can do my self with my driver . I have the tools also . One thing i want to mention is that im very experienced dispatcher that gets the best loads possible for my truck . $2:20 mile round trip to northeast and back and that how ive been surviving . Ive been down alot of money spent on truck but i know i can make it back the way i move my truck i just want to fix my truck to run right with no issues so i can get back to making money