No glow plugs in a 5.9 Cummins, you should know that! tsk Probably injector issues, have you ever replaced them? Keep them clean? have air coming into the system? Lots of things could cause this issue, better have it checked out by a professional soon or bad things can happen, DAMHIK! frown

The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it.

JB Rhinehart, Realist

A-Body's RULE!