Chevrolet 1980 Light Duty Truck Service Manual page 363

CAUSE
Leaking Brake Line or Connection
Leaking Wheel Cylinder or Piston Seal
Leaking Master Cylinder
A ir In Brake System
Contaminated or Improper Brake Fluid
Leaking Vacuum System
Restricted A ir Passage
in Power Head____________
Damaged Power Head
Improperly Assembled
Power Head Valvinq_________________
Worn Out Brake Lining - Replace
Uneven Brake Lining Wear -
Replace and Correct_________________
Glazed Brake Lining
Incorrect Lining Material - Replace
Contaminated Brake Lining - Replace
Linings Damaged by
Abusive Use - Replace__________________
Fxcessive Rrake Lining Dust
Heat Spotted or Scored
Brake Drums or Rotors_________________
Out-of-Round or Vibrating
Brake Drums______________________________
Out-of-Parallel Brake Rotors
Excessive Rotor Run-Out
Faulty Automatic Adjusters
Incorrect Wheel Cylinder Sizes
Weak or Incorrect Brake
Shoe Retention Springs______________
Brake Assembly Attachments -
Missing or Loose __________________
Insufficient
Brake Shoe
Guide Lubricant_______________________
Restricted Brake Fluid Passage or
Sticking Wheel Cylinder Piston
Faulty Metering Valve
Brake Pedal Linkage
Interference or Binding______________
Improperly Adjusted Parking Brake
Drums Tapered or Threaded
Incorrect Front End Alignment
Incorrect Tire Pressure
Incorrect Wheel Bearing Adjustment
loose Front Suspension Attachments
Out-of-Balance Wheel Assemblies
Operator Riding Brake Pedal
Improperly Adjusted Master
Cylinder Push R od____________
Sticking Wheel Cylinder or
Caliper Pistons _____________
Faulty Proportioning Valve
T o T - Indicates more probable cause(s)
X
X - Indicates causes
BRAKES 5-9
LIG H T TR U CK S ER V ICE M ANUAL