Accelerator Pedal problems of the 2003 Chevrolet S10

I am the original owner of a 2003 chevy s-10 pickup purchased in June 2003 that has less than 35,000 miles. In February 2008 when driving in local traffic and perfect weather conditions I suddenly heard a roar that sounded like a diesel truck and lasted only few seconds. I had never heard such a noise from my truck. About one quarter of a mile later the roar returned and the accelerator spontaneously depressed. I had to stand on the brake with all my strength to try to slow the truck. I stood on the brake for a distance of about 30 feet. I ultimately hit the car in front of me. I had to continue to stand on the brake to keep it from moving forward even after the impact. The person that was driving the car in front of me walked back to me and suggested that I turn off the engine. This stopped the roar (or "revved up") engine. The truck was towed to the dealership, but no problems could be detected by the computer diagnostics or the chevy dealers mechanic to explain the acceleration.

Consumer complained about gas pedal problems. The vehicle would accelerate by itself without consumer stepping on the gas pedal. Dealer and manufacturer were contacted, and stated that was a normal function, and that consumer needed to step harder on the brakes.