You are watching: How to prime fuel system on series 60 detroit
When you change them make sure to turn the valve off before them or you will have fun priming it. Loosening the check valve can help sometimes, removing the floor and reaching up from inside cab works on freightliners, KW has the motor a little further forward I would assume (ours seem further forward but none have detroits) so depending on your wrench collection you may get something on there.Fill the filters when you change them also, I don"t do this on many things but this is on application its needed.Bad return check valve can cause issues. Collapsed lines, bad transfer pump can all be an issue also.If you get it running and still have issues, verify fuel pressure.Rag and blow gun at the tank works wonders on many fuel systems. Ether is always an option that works too, removing air filter and spraying it direct is preferred by some if in a clean environment. Just a little shot, best to do while cranking obviously, but with one person thats not always an option.