Grand Cherokee 2WD V8-4.7L VIN N (2000)
Technical Service Bulletin # 05-005-01A
Date: 010914
Brakes - Roughness Or Pedal Pulsation
NUMBER: 05-005-01 REV. A
GROUP: Brakes
DATE: Sep. 14, 2001
THIS BULLETIN SUPERCEDES TECHNICAL SERVICE BULLETIN 05-005-01, DATED AUG. 10, 2001, WHICH SHOULD BE REMOVED
FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS**. THIS REVISION INVOLVES A CHANGE TO THE
LABOR OPERATION DESCRIPTION.
SUBJECT:
Brake Roughness Or Pedal Pulsation When The Brakes Are Applied
OVERVIEW:
This bulletin involves installing a brake pad repair kit and turning the brake rotors with an on-car brake rotor lathe or replacing the rotors it an on-car
brake rotor lathe is not available.
MODELS:
1999 - 2002
(WJ)
Grand Cherokee (including International Markets)
2001 - 2002
(WG)
Grand Cherokee (International Markets)
SYMPTOM/CONDITION:
The customer may experience a vibration of the steering wheel, floor, seat, instrument panel, or a minor pedal pulsation (brake roughness) under light to
moderate pedal application. This can be caused by excessive thickness variation on the rotor surface.
DISCUSSION:
A new brake pad repair kit has been released which contains an adhesive backing. The adhesive backing will move the pad away from the rotor when the
brakes are not applied, resulting in less friction and wear. This will provide for a more positive release of the brake pad when the brake pedal is released.
The preferred method to reduce any variation at the brake rotor surface is to resurface the rotors using an On-Car brake rotor lathe such as the Pro-Cut
lathe. The Pro-Cut lathe is available through Pentastar Service Equipment. The On-Car lathe does an excellent job of correcting all variation at the rotor
surface. Oft-Car equipment can correct variation on the rotor surface but does not compensate for variation caused by other rotating components such as
the hub/wheel bearing assembly. Situations can occur where a brake rotor and hub/wheel bearing assembly, when mounted together, can have stack-up
tolerances resulting in lateral runout sufficient to cause pedal pulsation.
PARTS REQUIRED:
EQUIPMENT REQUIRED:
POLICY:
Reimbursable within the provisions of the warranty.
