I've been researching a slight but annoying vibration that I get at 2000 RPM. It happens in any mode (ECO, Tow/Haul, etc.) and at any speed but always at 2000 RPM. I can feel it in the fuel pedal and the steering wheel. Is does not do it when in park or neutral...only while in motion. I mainly notice it when accelerating but it will vibrate constantly at around 60 MPH when the RPM stays steady at 2000 RPM. At this point, I can take my foot off the pedal and still feel the growl in the steering wheel. Once it shifts and the tach drops below 2000RPM, the vibration is gone.
I really think it is the torque converter but I have been reading a lot about the 5.7 Hemi having fierce torsional vibrations. I mentioned it to my service guy at the dealership and he was quick to blame the MDS system but I can almost bet that has nothing to do with this vibration.
Just wondering if anyone has had or is having a similar vibration at 2000 RPM. Any other ideas on what may cause this? I'm going to take it in soon but I want to be armed with some info first!
Here is a post I found about harmonic/torsional vibrations...
I can believe it being a harmonic vibration but wouldn't it do it even in park or neutral?
I have, and it was syncros that were out of alignment. Look into that buddy. Best of luck.