Dash Wiring problems of the 2006 Chevrolet Silverado 1500

While driving my truck down the freeway, the engine light suddenly came on and a warning appeared on the dashboard stating "reduced engine power" and the truck shut itself down to 10 miles an hour in seconds. I had vehicles coming up behind me traveling at 60 mph and higher that nearly hit me from behind. Even if I floored the gas pedal the truck would not speed up making it extremely difficult to get out of the way of oncoming traffic. The local chevy dealership had my truck 2 days and charged me $400. 00 for an emissions part. I picked my truck up on Thursday evening, Jan. 20, 2011, and it broken down the very next morning with the same issue. I took it right back over there and they told me to return it on Monday Jan. 24 which I did. They returned the truck to me on weds. Jan. 26, and said they couldn't figure out the problem but may have been a loose wire. The truck broke down with the same issue again on Feb 14. The dealership had it another 3 days and said they soldered some connections. Again on March 10, my truck broke down again, same issue. They had my truck until March 14, and again charged me for replacing the wiring harness and throttle body. I picked my truck up at 6 pm mon March 14 and it already broke down again this morning March 16, same issue. On two occasions now I have had my kids in the back seat, driving on the freeway when the engine decides to shut itself down. No one at chevy seems to care if we are injured or killed when we are hit due to this defective truck. I am not the only chevy owner reporting this problem. Not only are there complaints all over the internet, but the dealership had another truck in at the same time as mine at the March 10 visit, with the exact same issue and it had already been in multiple times for the same issue as well.