11 Common issues resulting from

Brake Pads TroubleshootingBrake Pads TroubleshootingExpert GuideExpert Guide

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Brake PadsTroubleshooting

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Stress Crack

ISSUEPads cannot slide freely or correctly within caliper

RESULTING CONDITION Warping of the back plate

CORRECTIONReplace pads, clean and lubricatecaliper brackets and guide pins

Uneven Wear on Pad Surface

ISSUEDeformed pad surface caused by irregularly worn or corroded brake disc (wear lip)

RESULTING CONDITIONBrake squeal, pulsing pedal, premature pad wear

CORRECTION Replace pads and rotors

Metal Residue

ISSUE

Water absorbed by porous rotorresults in release of metal fragments which embed themselves into the pad material

RESULTING CONDITIONBrake squeal, grinding noise, possible rotor damage

CORRECTION Replace pads and rotors

Charred Friction Material

ISSUEProlonged extreme temperature from excessive use or driver dragging foot on brake pedal

RESULTING CONDITIONReduced braking effi ciency, excessive deterioration and wear of friction material, abnormal wear

CORRECTIONReplace pads if friction materialis brittle

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Glazed Surface

ISSUEPads are submitted to intermittent periods of excessive temperature. Inadequate break-in

RESULTING CONDITIONTemporary reduction in braking performance

CORRECTIONNormal use will restore braking performance. Replace pads if overly glazed or problem reoccurs

Damaged Back Plate

ISSUEFaulty assembly or disproportionate use of force during installation

RESULTING CONDITIONDecreased braking performance, noise, premature wear or pad can no longer be installed into caliper

CORRECTION Replace pads

Worn Out Brake Pad

ISSUELack of periodic inspections of pad wear and brake maintenance

RESULTING CONDITIONNoticeable squealing, grinding, vehicle pulling to one side when applying brakes, damaged rotor

CORRECTIONReplace pads, replace rotorif damaged

Contaminated Surface

ISSUEFriction material contaminated with brake fl uid, grease or oil during maintenance

RESULTING CONDITIONVehicle pulls to one sideduring braking and reducedbraking performance

CORRECTION Replace pads

Brake PadsTroubleshooting

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NORMAL BACK PLATE

DAMAGED BACK PLATE

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Tapered Friction Surface

ISSUECrooked caliper, excessive caliper clearance, sticking caliper pistonor slides

RESULTING CONDI-TION

Friction material excessively and unevenly worn, uneven braking performance

CORRECTIONReplace pads, caliper maintenance and/or replacement

Corrosion

ISSUEVehicle unused for a longperiod of time or exposure to corrosive substances

RESULTING CONDITIONFriction noise, uneven wearof the braking surface

CORRECTION

Resurface the brakingcomponents (pads and disc)or replace the componentsif corrosion is too advanced

Unevenly Worn Set of Pads

ISSUEOne of the two pads cannot slide freely or correctly within caliper

RESULTING CONDITIONNoise and vibration during brakingand increased pad wear

CORRECTION Replace pads

TAPERED PAD

NORMAL PAD

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Brake PadsTroubleshooting

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