Brake System
Checklist
..Power
Booster
- Loss of vacuum
- Ruptured diaphragm
- Defective check valve
- Excessive pedal effort
..Master
Cylinder
- Plugged compensating ports
- Dirt/sediment in reservoir
- External fluid leakage
- Pedal drops to floor
- Deteriorated cups/seals
..Caliper
- Frozen/cocked piston
- External fluid leakage
- Defective mounting hardware
- Broken bleeder screw
- Will not slide or float
..Rotor/Drum
- Beyond machinable limits
- Excessive rotor runout
- Drum warped/out-of-round
- Scored or grooved surface
- Improper surface finish
..Hoses/Lines
- Deteriorated rubber hoses
- Rusted/corroded metal lines
- Improperly routed lines
- Air in system
- Leaks at fittings/connections
..Shoes/Pads
- Normal wear
- Grease or oil on linings
- Glazed lining surfaces
- Uneven lining wear
- Excessively noisy

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