Uplander FWD V6-3.5L VIN L (2006)
Brake Rotor/Disc: All Technical Service Bulletins
Brakes - Pulsation/Vibration When Applying Brakes
TECHNICAL
Bulletin No.: 07-05-23-003B
Date: April 28, 2009
Subject: Pulsation/Vibration When Applying Brakes (Repair Rotor Variation and Install New Front Brake Shields)
Models:
2005-2007 Buick Terraza
2005-2009 Chevrolet Uplander
2005-2009 Pontiac Montana SV6
2005-2007 Saturn Relay
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Supercede:
This bulletin is being revised to add the 2009 model year and update the labor operations. Please discard Corporate Bulletin Number
07-05-23-003A (Section 05 - Brakes).
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Condition
Some customers may comment on a pulsation/vibration felt when applying the brakes.
Cause
This condition may be caused by the brake pads and rotors wearing unevenly due to debris.
Correction
Repair the rotor variation and install new front brake shields using the steps below:
1. Verify that the condition is from the front brakes.
2. Correct the rotor variation by referring to the Brake Warranty Service and Procedures Bulletin Number 00-05-22-002 or later.
Important
Measure Lateral Run Out (LRO), brake rotor thickness specification and document the information on the repair order. Include the
warranty claim code and ONLY claim this Special Labor Operation H9725* for this bulletin.
3. Remove the front wheel bearing/hub. Refer to Front Wheel Bearing and Hub Replacement in SI.
4. Remove and discard the old front wheel speed sensor bracket and old wheel bearing/hub bolts.
5. Install the new front brake shield (1).
