MR2 L4-132 2164cc 2.2L DOHC (5S-FE) (1993)
Brake Rotor/Disc: Technical Service Bulletins
Brakes - Cause and Repair of Vibration and Pulsation
REF: BRAKES
NO.: BR94-002
DATE: FEBRUARY 7, 1994
MODEL: ALL MODELS
BRAKE VIBRATION AND/OR PULSATION
This TSB outlines the causes of brake vibration and pulsation, as well as the best corrective measures to use.
CONTENTS
1)
Symptoms of brake vibration and pulsation
2)
Cause of vibration/pulsation problems
3)
Advantages of using an on-car brake lathe
4)
Rotor replacement and off-car brake lathe procedure
1)
SYMPTOMS OF BRAKE VIBRATION AND PULSATION
Brake vibration problems generally involve one or both of two phenomena: body vibration and/or pedal pulsation.
A.
BRAKE VIBRATION
Applying brakes causes vibration to occur in the instrument panel, steering column, steering wheel, and/or body of the vehicle (see Figure 1).
B.
PEDAL PULSATION
Applying brakes causes the brake pedal to pulsate. This brake pulsation sometimes causes the steering wheel to oscillate when the brakes are
applied (see Figure 2).
2)
CAUSE OF VIBRATION/PULSATION PROBLEMS