How can I tell if my Cummins ISX has no boost?
How can I tell if my Cummins ISX has no boost? Ok than verify you have no boost pressure by hooking up a manual gauge to the intake and road test the unit. If you had a true loss of boost the intake manifold pressure (boost psi) sensor would alert you. Sorry for the delay i was out of town for a few days. What are the problems with a 2009 Cummins ISX? The truck is doing the exact same thing, it doesn't run any better or any worse than it did BEFORE I brought it in. Thanks for the...