Problem Possible Cause Action
Noise or vehicle
vibration when applied
Incorrectly mounted back plate or caliper Repair
Loosened bolt of back plate or caliper Retighten
Uneven wear of brake disc Replace
Brake pad contamination Clean or replace
Sticking brake pad on contact surface Replace
Wear or hardening of brake pad Replace
Excessive clearance between caliper and pad Repair
Uneven contact of pad Repair
Lack of lubrication in sliding parts Lubricate
Improper operation of caliper Replace
Dust cover missing Repair
Loosened suspension mounting bolt Retighten
Pulls to one side when
braking
Unbalanced tire pressure between left and right Adjust
Poor contact of brake pad Repair
Oil or grease on brake pad Replace
Scratch, uneven wear, distortion of brake disc Replace
Improperly installed brake caliper Repair
Improper operation of auto adjuster Repair
Crack or distortion of brake pad Replace
Poor braking Oil leak or contamination Repair or replace
Air in brake line Bleed air
Improper operation of brake booster Repair
Poor contact of brake pad Repair
Oil or grease on brake pad Replace
Improper operation of auto adjuster Repair
Clogged brake line Repair
Improper operation of proportioning valve Repair
2. TROUBLESHOOTING
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