Canyon 4WD V8-5.3L (2009)
Brake Bleeding: Customer Interest
Brakes - Brake Pedal Spongy/Increased Pedal Travel
TECHNICAL
Bulletin No.: 09-05-25-003
Date: September 21, 2009
Subject: Brake Pedal Spongy, Increased Pedal Travel, Increased Effort to Stop (Inspect for Leaks, Replace Brake Pressure Modulator Valve (BPMV),
and Bleed Brake System)
Models:
2009 Chevrolet Cobalt
2009 Chevrolet Colorado
2009 Chevrolet Equinox
2009 Chevrolet HHR
2009 GMC Canyon
2009 Pontiac G5
2009 Pontiac Torrent
2009 Pontiac Solstice
2009 Saturn SKY
2009 Saturn VUE
Equipped With RPO JL4 Only
Condition
Some customers may comment that over time the brake pedal has begun to feel spongy, that they are experiencing increased pedal travel and an
increased effort to stop.
Cause
This condition may be caused by air accumulating in the master cylinder or by a missing filter in the brake pressure modulator valve (BPMV).
Correction
1. Perform the Diagnostic System Check - Vehicle.
‹› If DTCs are present, refer to Diagnostic Trouble Code (DTC) List - Vehicle.
‹› If DTCs are not present, proceed with this bulletin.
2. Inspect the master cylinder for the proper brake fluid level.
3. Visually inspect the brake system for external leaks. Refer to Brake System External Leak Inspection in SI.
4. Verify the customer concern by road testing the vehicle.
Note
Depending on the placement/orientation of the bar code label on the BPMV, it may be necessary to use a mirror to view and identify the 4-digit
numbers.
5. Inspect the 4-digit number (1) underneath the bar code on the brake pressure modulator valve and compare it to the following list to verify if it is
one of the affected units.
List of Affected Units
