GM Tech Tip: Squeak Noise On Brake Pedal Application

GM Tech Tip: Squeak Noise On Brake Pedal Application

Some customers may comment on a squeak noise when the brake pedal is applied or when released. This noise is normally heard when the brake pedal is slowly applied with the engine on or off, but can occur when the brake pedal is released. The noise may be isolated to the master cylinder area.

Models
• 2004-2007 Buick Rainier
• 2008 Buick Enclave
• 2004-2008 Chevrolet Colorado, TrailBlazer
• 2008 Chevrolet Malibu
• 2009 Chevrolet Malibu
• 2004-2008 GMC Canyon, Envoy, Envoy XL, Envoy XUV
• 2007-2008 GMC Acadia
• 2008 Pontiac G6
• 2009 Pontiac G6
• 2007-2008 Saturn Outlook
• 2008 Saturn Aura
• 2005-2008 Saab 9-7X

Condition

Some customers may comment on a squeak noise when the brake pedal is applied or when released. This noise is normally heard when the brake pedal is slowly applied with the engine on or off, but can occur when the brake pedal is released. The noise may be isolated to the master cylinder area.

Correction
To correct this concern, remove as much of the old brake fluid from the master cylinder as possible and refill with a new DOT 3 brake fluid, P/N 88862806 (in Canada, use P/N 88862807). Start the vehicle and fully cycle the brake pedal until the noise diminishes to allow the new fluid to enter the system.

You May Also Like

VW/Audi PCV Service

The PCV valve regulates the flow of gases from the crankcase.

Positive crankcase ventilation (PCV) systems have been on just about every vehicle since the late 1960s. The systems route crankcase vapors and droplets into the intake manifold so they are burned in the combustion chamber or catalytic converter. 

The PCV valve uses the vacuum from the intake manifold to regulate the flow of gases from the crankcase. The pintle or ball inside the valve moves in response to the pressure difference between the crankcase and the intake manifold. The valve is typically located between the throttle body and cylinder head on a runner for the intake manifold.

Volvo Engine Service

There are many combinations for the Volvo modular engine.

Servicing Mercedes-Benz AMG Brakes

Take a look at some of the things you need to know in order to service the brakes on a Mercedes-Benz AMG vehicle.

AUDI Outside Air Temperature Readings

Incorrect readings can be avoided.

Mercedes-Benz ABC Suspensions

The system provides great ride & handling, but it can be complicated to service if you do not have the right training.

Other Posts

Don’t Miss The April Digital Edition of ShopOwner

The April issue includes technical and management content and is free to download.

ZF Expands SACHS CDC Shock Line for U.S., Canada

The release expands ZF’s line by more than 70% reflecting growing demand for advanced damping technology in the aftermarket.

Philips Announces Xperion 6000 LED Under Hood Work Light

It features a motion detection switch that allows mechanics to turn the light on and off with a wave of their hand.

Snap-on Announces Latest Software Release

The latest software includes new coverage, guided component tests and features.