Vehicle Shudder problems of the 2006 Ford Explorer

Tl-the contact owns a 2006 Ford Explorer. The contact stated the vehicle would shake whenever the gears were shifted. The contact mentioned that the vehicle would make a loud noise and the transmission started to slip. Also, the gear shifter failed to move out of park. The vehicle was taken to the dealer who was unable to diagnose the failure. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 72,659. Pmb.

During a left turn across three lanes of traffic our Explorer would not accelerate. It lurched to start and would not go above 10-15 mph, nearly stalling. We were able to drive the car home but could not get it to go above 20 mph. At speeds 10 - 20 mph it jerked violently. This was a common occurence at speeds 45 - 60. Moderately accelerating between 45 - 60 mph has caused hard jerks for years with this car prior to it being off warranty. We've taken it to ted britt Ford several times and each time they said there was nothing wrong. We also noted they only put it on the ticket once, the other times telling us they took it off since they didn't have the issue and wouldn't charge us for it. The time mentioned in this incident the dealer offered to split the cost with us due to our previous issues and their inability to fix it. They also did not fix the issue as we still cannot accelerate at speeds 45 - 60 without hard jerking from the engine or transmission. We no longer use this car on the highway because it is dangerous trying to switch lanes or merge on to a highway when the car violently shakes at highway speeds. It would not accelerate and often left us running out of merge lane space without the ability to get into traffic. I have read several such problems with this car and I am surprised nothing has been done about it. We have spent thousands having this car looked at and in failed attempts to fix it.