3500 Dually, 04 automatic, reversing down the driveway it makes a shudder and even in drive or in reverse, and stopped, it still vibrates or rattles. Even going from 0-~10mph the truck vibrates, sounds like its coming from the passanger side engine compartment. What could this be?

 

I have the same problem, I posted a question on here and you are the only one that seems to have the same problem as I do. I have no clue what it is. I took the entire intake apart and it still does it. If you notice it seems to only do it when the idle drops to around 650 or 750. My truck is a 6spd, and I only get that rattle from the passenger side when I let the clutch our when coming to a stop. If you have any idea, PLEASE let me know.

V/R
Erik T. Jorgensen
NC1, USNR(TAR)
Spokane, WA
04.5 2500 Cummins 6spd. 4x4

 

It doesnt really do it below idle, but I'd say from idle to about 1200-1300 rpm when speeds are slow 0-8mph or so. Its really annoying to come to a stop and have it rattle like that.

 

I talked to someone that thought it might be a powersteering hose hitting the fender or some piece of plastic. But it is coming from the passeger fender area. Other than that if you find anything else out. let me know.

Erik Jorgensen
NC1, USNR(TAR)