C 2500 Suburban 2WD V8-6.5L DSL Turbo VIN F (1995)
Vacuum Brake Booster: Testing and Inspection
Slow or No Release
1.
Faulty pushrod adjustment.
2.
Binding linkage.
3.
Blocked passage in power piston.
4.
Air valve sticking shut.
5.
Broken piston return spring or air valve spring.
