One problem related to brake disc rotor has been reported for the 1997 Chevrolet Blazer. The most recently reported issues are listed below.
The rotors are wearing out, and when applying the brakes, the vehicle will have heavy vibration and extended stopping distance. The dealer notified. The power booster failed which was located behind the master cylinder and mounted to a firewall. The vehicle would not stop in the proper amount of time when the pedal was depressed. The pedal would need to be applied really hard then would stop 15 to 25 inches further. The consumer was informed that there was a spring within the metal rod which caused it to fail. The master and the booster assembly was replaced.