Two problems related to front suspension wheel bearing have been reported for the 1999 GMC Sierra. The most recently reported issues are listed below.
Consumer states: anti-lock brake system, when applying it makes weird noise, and has to push brakes to the floor. Had to do 4 times, was under 5 mph and pedal kicked back, and it grabbed. Just got abs serviced and new fuse put in. Had to take out fuse for the brakes to work properly. Could hear whinnying noise before taking out the fuse, and light came on at the same time. Dealer hooked up vehicle to diagnostic machine, replaced right front hub and bearing assembly, and still having the same problem.
Right front wheel lock up while driving, vehicle tow to a repairs shop and informed of a front wheel bearing failure. Dealer and the manufacturer were notified. Feel free to provide any further information.