One problem related to brake fluid leak has been reported for the 2000 GMC Sierra 3500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 GMC Sierra 3500 based on all problems reported for the 2000 Sierra 3500.
Steel brake pipe that carries fluid to the rear brakes ruptured next to the fuel tank. Fluid is leaking and pooling on the flange of frame. Stopping performance is degraded, and no warning has registered via the instrument cluster or idiot lights. Line is badly corroded, which perhaps is to be expected given the age of the vehicle. However, I find it ironic that the exhaust system is made of stainless steel yet the brake lines are not. This vehicle has had other brake-related failures that gm refused to correct, despite having recalled contemporary vehicles with identical problems. It is an unusual build - old (gmt400)bodystyle, model year 2000, 1 ton crew cab longbox. I believe gm forgot they built these and thus they neglect to include trucks of this type in their prior recalls. Registering this complaint in hopes that gm will remember to include such trucks in the ongoing pe over the brake pipe corrosion issue.