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NHTSA ID Number: 10113619
Manufacturer Communication Number: PI1466
Summary
This preliminary informational bulletin provides repair information to correct a customer concern of a squeak and/or groan noise from the brake pedal area upon brake pedal application.
6 Affected Products
Vehicles
Parts
| BOOSTER ASM-P/B | 25879631  |
SEOCONTENT-START
Bulletin No.: PI1466
Date: Apr-2015
Subject: Squeak and/or Groan Noise from Brake Pedal Area Upon Brake Application
Models: 2013-2014 Buick
Enclave
2013-2014 Chevrolet Traverse
2013-2014 GMC Acadia
Built Prior to January 1, 2014
Attention: This PI also applies to any of the above models that may be Export vehicles.
Condition/Concern
Some customers may comment on a squeak and/or groan noise from the brake pedal area upon brake pedal application.
The noise may be more predominant when outside ambient temperatures are warmer and/or after repeated use of the brake pedal.
Important: This condition does not affect the brake pedal performance or function.
This may be caused by the valve assembly in the brake booster being misaligned, causing the grease on the internal mating seal to be wiped away over time and creating a noise.
Recommendation/Instructions
If you experience a vehicle with the above condition, replace the power vacuum brake booster. Refer to Power Vacuum Brake Booster Replacement in SI.
Parts Information
Part Number Description
25879631 BOOSTER ASM-P/B
Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
Labor Operation Description Labor Time
2441580 Power Vacuum Brake Booster Replacement Use Published Labor Operation Time
SEOCONTENT-END
Bulletin No.: PI1466
Date: Apr-2015
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- Provides an extra margin of safety in extreme braking conditions
- Mix of polyglycol ethers ensures hot brake-system operation will not create dangerous vapor
- Excellent for ABS, disc and drum brake systems
- Delivers braking power when needed by avoiding a spongy pedal
- Both wet and dry boiling points exceed the minimum government standards
- High compatibility. Use with or direct replacement for DOT 3, DOT 4, and DOT 5. 1
- Extended Service Interval (ESI): Lasts 100 percent longer than DOT 3, 50 percent longer than DOT 4, and 10 percent longer than DOT 5. 1
- Exceeds all DOT 3, DOT 4, and DOT 5. 1 standards
- Wet boiling point ~ 365 DegreeF/Viscosity at -40 DegreeC ~ 685mm2/s
- Standard brake fluid has a recommended change interval of 2 years. The recommended change interval for Bosch ESI6 is 3 years.
- Premium brake and hydraulic clutch fluid that protects internal components from corrosion under normal use
- High boiling point to minimize brake fluid boiling and vapor lock
- Excellent low temperature capability and stability when used where lower cold viscosities are required
- Excellent low temperature capability and stability when used where lower cold viscosities are required
- Synthetic quality brake fluid
- Contains special ingredients to guard against vapor lock and moisture absorption
- Exceeds requirements for both DOT 3 and DOT 4 brake fluids
- Specially formulated for DOT 4 brake fluid applications
- Designed for use in disc, drum and ABS brake systems
- DOT 3 Brake Fluid/12x1/12 Ounce
- DOT 3 Brake Fluid/12x1/12 Ounce
- DOT 3 Brake Fluid/12x1/12 Ounce
- DOT 3 Brake Fluid/12x1/12 Ounce
- DOT 3 Brake Fluid/12x1/12 Ounce
Last update on 2025-04-15 / Affiliate links / Images from Amazon Product Advertising API
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