Removal Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Refer to Brake Fluid Irritant Caution
.
NOTE:
Refer to Brake Fluid Effects on Paint and Electrical Components Notice
.
- Turn the ignition to OFF, without pausing at ACCESSORY, and remove the ignition key.
- Wait approximately 1 to 3 minutes until the brake modulator and HPA pressure relief is complete.
- Remove the brake fluid from the brake master cylinder reservoir and discard into an approved container.
- Disconnect the brake fluid level sensor electrical connector.
- Disconnect the brake master cylinder reservoir return hose quick connect (1) and position the hose aside.
- Disconnect the brake master cylinder reservoir supply hose quick connect (2) and position the hose aside.
- Disconnect the brake master cylinder primary brake pipe fitting (1).
Cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.
- Disconnect the brake master cylinder left supply brake pipe fitting (1).
Cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.
- Disconnect the brake master cylinder right supply brake pipe fitting (1).
Cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.
- Disconnect the brake master cylinder right front brake pipe fitting (1).
Cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.
- Disconnect the brake master cylinder left front brake pipe fitting (1).
Cap the brake pipe fitting and plug the master cylinder outlet port to prevent brake fluid loss and contamination.
- Remove the brake master cylinder nuts (1).
Discard the brake master cylinder nuts.
- Remove the brake master cylinder and the master cylinder seal (1).
IMPORTANT:
The ignition must be in the OFF position, without pausing at ACCESSORY, and without applying the brake pedal to ensure the brake modulator and high pressure accumulator (HPA) pressure relief occurs. This process will take approximately 1 to 3 minutes.
IMPORTANT:
During the pressure relief process, the fluid level in the master cylinder reservoir will rise. Do not remove the master cylinder reservoir cap during the pressure relief process.