I have 2006 5AT G coupe and my gear shift is shaking for a moment when I drive on bump road..

anyone has same problem??

 

hmm was it happening before this occurance?

The shifter is connected to the engine through the tranny, so excessive engine movement may account for some of this.

 

shifter vibration shoud be normal

 

I'm guessing it's this, since he said it happens on bumpy roads:

(from one of my earlier posts: https://g35driver.com/forums/showthr...=174871&page=2)

Problem: faulty transmission control module (TCM) software on 06+ 5ATs causes the torque converter to lock up and the car shakes violently for a few seconds. Typically happens while cruising at ~40 MPH (~64 KPH), especially going uphill or over bumpy roads. It can happen on flat roads though. The visible sign is the shifter shaking back and forth.

Fix: have the dealership reset (possibly reflash) the TCM.
Partial fix (particularly for FI): install a transmission cooler and extend the time window during which the TCM increases line pressure, which seems to significantly reduce the frequency of lockup.

Good luck to you, because according to Infiniti, the problem doesn't exist. Yet with each passing week, someone else with an 06+ 5AT posts about it.