Three problems related to brake master cylinder have been reported for the 2000 Nissan Xterra. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Nissan Xterra based on all problems reported for the 2000 Xterra.
I was driving my 2000 Nissan Xterra on a ohv trail when I lost brake pressure and had my "brakes" light come on. After investigation, I found that my brake line had rusted through where the line passes by the passenger side exhaust manifold. The spot was completely hidden underneath where the oem had placed a protective heat wrap on the line. The heat wrap was saturated with water and therefore promoted the line to rust through. This caused a loss of brake fluid to power to my rear brakes. I had to remove the brake line from the anti skid controller cut it and clamp it off. I refilled the master cylinder and was able to regain the use of my front brakes and get the vehicle home. I will be replacing both the front and rear brake lines from the anti skid box to the distribution point and having the brake system purged and refilled. The old parts will be kept.
The brakes of my wife's 2000 Xterra failed due to poor engineering. Fortunately it happen when my wife was driving at low speed on the back road we live on. The hard line from the master cylinder to the front brake is routed past a manifold heat shield. The line is installed so it rubs on the heat shield. The heat shield eventually cuts into the line causing it to fail. The car is at a local repair shop where a new brake line will be installed.
While driving 35-40 mph had to apply brakes hard and pedal went to the floor. Vehicle went through a red light, and jumped a ditch before consumer was able to stop vehicle. Consumer suffered light injuries. Consumer found studs that connect master cylinder to brake booster had broken. Vehicle not taken to dealer yet.