Hey group I have a 2004 Holiday Rambler Endeavor with a Cummins ISC 330.. Changing the fuel filters was wondering about prefilling them?? And priming them, on my diesel pickup you just cycle the key a...
I pre-filled for several years then read where I should not be doing this. Next time I changed filters I did the key cycle like they said. Took me two days to to finally get my coach running. Pre-fill through the small holes and avoid the problems. I know several people will tell you they have never had a problem but odds are it is just a matter of time.