Five problems related to brake master cylinder have been reported for the 1996 GMC Sierra. The most recently reported issues are listed below.
Brakes were faulty but dealer was not able to find the problem, consumer was involved in a accident due to the defective brakes which caused severe injuries, the consumer replaced the master cylinder and now the vehicle brake properly. Nlm.
Brake master cylinder cover leaks.
Owner has abs brakes. Brake pedal is very mushy when brakes are applied. Also, problem occurs on all types of pavemenst. Dealer replaced master cylinder which temporay corrected problem. There is also low brake pedal.
Master cylinder stopped working, cause unknown.
The master cylinder is leaking fluid, resulting in extended stopping distance. The dealer has been notified.