general problems of the 2000 GMC Sierra

The consumer was at a stand still when putting the vehicle in reverse, the consumer pressed the accelerator pedal and there was some resistance in the accelerator pedal and then the pedal dropped straight to the floor. When the vehicle was moving backwards, the owner hit the brake and the vehicle began to accelerate on it s own at a high rate of speed. The consumer crossed two lanes of traffic and hit a guard rail. Provide further details.

While applying the accelerator pedal vehicle failed to move. After applying the accelerator pedal numerous times the vehicle jumped and surged forward. Consumer was able to maintain control of the vehicle, and drove it to the dealer for inspection.

Mr.

At an intersection consumer applied gas to cross intersection, nothing happened, engine revved, but vehicle did not move. After a few minutes of going through gears, vehicle finally moved again.

On 12/13/99 when slowing down to make a left turn, the tourque converter locked up and stalled the truck in middle of traffic while crossing the left lane. With difficulty, truned the wheel back to the right and pull off the road and shifted into park and restarted the truck. Luckly there was very little on coming traffic. On 2/11/00 while coming into a rolling right hand turn and going about 15 mph, I started to brake and the tourque converted again locked up and the engine stalled. Again with difficulty I was able to steer into the corner and make the corner. As the truck was free rolling it just started itself and it contiuned on, almost crached into two cars waiting at the stop sign. If my wife was driving there would have been a collision. In October when waiting for a traffic light to change, I accellerated and truck didn't move. I stepped on the brake shifted to park and then back to drive and it finally went into gear and moved. Have been back to the dealer twice with tourque converter concerns with no solutions. Gm has a transmission problem with there 4l60e transmissions. My 1998 GMC jimmy has been replaced at 19000 miles. Am very worried that this will happen at any time when not ready and an accedent will happen.