drivetrain noise under center console
I am working on a 2004 Jeep Grand Cherokee. First the issue, we are hearing a rotational noise under the center console, only on bumps and when decelerating. Sounds like an electric solenoid fluttering under low voltage. However, it definitely changes with speed, will not do it on the lift, and does not do it with the front driveshaft removed. Now, for a list of what we have done, for unrelated issues we just rebuilt the Transmission, replaced front shocks and rear upper control arm and ball joint. We replaced both front Hub bearings as they were screaming, rebuilt the front Diff as it had play, rebuilt the transfer case (thought the noise was in the output bearing), and even replaced the front driveshaft, all to no avail. Same noise, same spot, now with the hub bearings quiet, I can hear it better. Anyone have any thoughts? I thought maybe a defective torque converter, My transmission builder insists that can't be it.