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Brake Pulsation

Brake Pulsation


Step Action Yes No
DEFINITION: Fluctuation or pulsation is felt through the brake pedal, steering wheel, seat, floor, and/or in the vehicle ONLY when braking.

1

Were you sent here from the Hydraulic Brake Symptom table?

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Go to Symptoms - Hydraulic Brakes

2


1. Inspect the disc brake system for the following conditions.

• Excessive thickness variation of rotor friction surfaces

• Excessive assembled lateral runout (LRO) of rotor friction surfaces

• Hard spots, heat checks, bluing discoloration of rotor friction surfaces; possibly due to brake drag

• Excessive corrosion of rotor friction surfaces; including red, gray or black oxidation

• Loose, damaged or missing caliper or lining hardware

• Bent or damaged caliper or mounting component

• Excessive LRO of wheel hub/axle flange; due to damage and/or loose or excessively worn bearings

2. Adjust, repair or replace components as necessary. Refer to Disc Brake System Diagnosis .


Did you find and correct a condition?

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Go to Symptoms - Hydraulic Brakes

3


1. Install or connect any components that were removed or disconnected during diagnosis.

2. Road test the vehicle in order to confirm proper operation. Refer to Brake System Vehicle Road Test .


Is the condition still present?

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System OK