One problem related to engine cooling system has been reported for the 2000 GMC Sierra. The most recently reported issues are listed below.
There is no indication on the panel that there is pulsation. Also there is no abs noise and light braking power. Dealership is aware of problem. Consumer stated that heat vent cap keeps popping off and replaced. Tail gate bed liner not flat, panel rippled and rescuer rear panel, install additional fastener. Horn pad failed, brakes are squeaky,, abs system checked could not duplicate any problem, brake pedal goes to floor at times and vehicle does not stop, master cylinder leaking internally.