Fuel Hoses Lines/piping And Fittings problems of the 2001 GMC Sierra 1500

Two things started to happen 1. The truck when coming to a stop of a speed of less then 25 mph started to lose its brakes and feel spongy. This continued until I got it in the shop which was about two days. 2. The truck started to run very rough and the engine light was coming on at the same time as well. After I got it in the shop and they got it up on a lift they found that all of the brake lines and fuel lines were all most rusted through and starting to leak. They had to replace all of the brake lines, fuel lines and since they had the fuel tank down they replaced the fuel pump because they found rust and dirt in the old pump. The shop mechanic said the lines were ready to fail at any moment. The chevy dealer I bought the truck off of just four months early had just inspected it and had seen the rusted lines and even repaired a piece of one of the fuel lines but left the rest go to fail down the road, they gave me little to no help. This is a huge problem, dangerous as well as very expensive one and needs looked into. Is there any help I can get for this problem??.

The contact owns a 2001 GMC Sierra 1500. The contact stated that while driving 20 mph, he applied the brakes and the pedal depressed to the floor. The vehicle coasted to a stop. The contact examined the master cylinder and noticed that all the brake fluid leaked from the vehicle. The contact also noticed that the brake lines were fractured. The vehicle was towed to an independent mechanic and was not repaired. The manufacturer was made aware of the failure and offered no assistance. In addition, the contact stated that he replaced the fuel lines and pumps in the past due to corrosion. The failure and current mileages were 150,000.