Thank you Tim G and other members for all the hard effort put into discovering this defect. This is my first post to the forum and Good Day to all.
I just came out of a two year long drama with my 2017 2500. Long story but FCA just took it back after Lemon/Lawyers and finally over. Of course now truckless I took the settlement check just purchased a new 2019 Bighorn 2500 Crew Cab with 6.7L. shown in Avatar. (only two weeks ownership and 800 miles on the OD)
It wasn't until I drove it around some in my home area on our bad streets that I noticed this clunk noise. I crawled under the truck and of course told myself, "what am I doing under here again"? I didn't see anything obvious. While driving I did notice the seat belts banged some and also the rear seatbelts could bang inside the upper housing on each side, so I stuffed foam in there. The clunking was still there and appeared under and back of the rear seats. I put the seats in the upright position and drove around and noticed the sound was louder. On smooth streets real quiet cab. On extremely rough bumps no real loud clunks. You hear it when you drive on roads where the conditions are semi wash board and you back off from the pedal some and let the truck be in a rolling cruise where it's allowed to have subtle bounces. In other words, the cab mounts are allowed to float some so they aren't at any extreme extents. The clunks can be heard at all four positions of the mounts, but the rears are the loudest.
Anyway, here I go again. My wife hates me now, my lawyer is laughing at me and my service rep hasn't heard from me just yet, soon, but I'm sure I'll have to bring her some cookies.
I truly don't expect, at least with this defect, that it'll be a big deal. I am concerned from what Mr. Tim G has written that parts may be a concern. Taking a truck from the show room directly to the shop, well I guess that's what FCA Ram's known for. This is my 3rd Ram truck, starting with an 05.
If what Tim G writes about the mounts being liquid filled or damped, may I remind Ram Engineering to look into the history of Ford using liquid damped mounts for the engines of the Ford Taurus in the 90's. Ripped open and leaked constantly even new. Real disaster for them.
Stay tuned if anyone's ears are still on,