Power Steering Pump problems of the 2009 Chevrolet Silverado 2500

The contact owns a 2009 Chevrolet Silverado 2500 hd. The contact stated that while trying to depress the brake pedal to stop at a 4-way stop sign, the brakes applied "hard" as if he had made a panic stop. As he was leaving the 4-way stop and driving up a hill, he tried to turn the corner and had much difficulty doing so. He heard a popping sound and the difficulty continued. However, a short time later, the steering seemed to correct itself. The contact took the vehicle to the dealership but was told that there was nothing wrong with the vehicle. The contact felt that the power brake that was hooked to the power steering may have contributed to the failure and maybe the power steering pump may have been faulty. He had not called the manufacturer to-date. The vehicle had not been repaired at the time of the complaint. The current mileage was approximately 6,500. The failure mileage was approximately 6,400.