Problem in 4th and 5th Gear
this might relate the the stutter or shudder problem many refer to, but the symptoms are fairly different:
Jeep is a 5.7 4x4 Limited, build Feb 2011 (sold to me in June 11, with 37 miles on the clock)
Since new, once the torque converter has locked up in 4th or 5th gear, whilst accelerating the car stutters all the way as if the engine was missing a beat. This happens by accelerating at about 20% throttle, ie just before the point the car would unlock the torque converter and shift down a gear.
The stutters persists at all speeds, accelerating from 45 mph all the way to 90mph (did not try any faster).
Even accelerating from 80 upwards produces the same result.
This happenes in all modes: in Sport as in Auto, In D as in Autostick mode. Same situation in Tow/Haul: as soon as the torque coverter locks up in 4th or 5th, the stutter begins.
I have brought it to the dealer and the driveline tehcnician took a ride with me, recognised the problem and agreed this is not simply an MDS effect, but a real issue.
They kept the car for a day, telling me they did not know how to fix it, and raised it to Chrysler via a Starcase. Chrysler admitted they know about the problem and are working on a fix. It has been 2 weeks and they had no news (obviously it is me needing to chase them..!)
Now, this sounds different from the issues experienced in other threads I have read here (some refer to a shudder whilst the case changed gear at full throttle, some referred to a stutter at partial throttle that disappeared post 65mph), so I am doubtful Chysler is really working on a fix.
The issue does bother us as we use the car mainly for long commuting trips, and with the cruise control on the Freeway it feels like driving over a washboard.