04 cummins loses rail psi when normal temps are reached
#11
well he installed new cp3 all kinds of sensors through out at idle now its running 12k rail psi i know thats way high and now its throwing injector codes hes going to change the injectors here pretty quick but it still does the same things anymore ideas
Last edited by coors_man_2005; 07-25-2011 at 11:06 PM.
#16
#18
For us it was the injector tube nuts not being torqued down to 44 foot pounds. Basically, tighten them until you think they are tight, then give them five more full turns until they bottom out. Torque wrench and a crows foot worked well for this. For your case, I would have suspected bad injectors. As a professional mechanic I would not recommend replacing a $1200 pump because someone "suspects" it is the problem. There are ways to diagnose and verify fixes on these trucks, like on most other cars.
Last edited by Farlander; 09-08-2014 at 12:00 AM.