Installation Procedure

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

If installing a new master cylinder reservoir, install the master cylinder fluid level sensor. Refer to Brake Fluid Level Indicator Switch Replacement .
If installing the original master cylinder reservoir, clean the master cylinder reservoir with denatured alcohol and dry with filtered, non-lubricated compressed air.

Fig 1: Identifying Primary & Secondary Reservoir Seals

Courtesy of GENERAL MOTORS CORP.

Install the secondary master cylinder reservoir seal (1) to the master cylinder reservoir.
Lubricate the seal with Delco Supreme 11®, GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container
Install the primary master cylinder reservoir seal (2) to the master cylinder reservoir.
Lubricate the seal with Delco Supreme 11®, GM P/N 12377967 (Canadian P/N 992667), or equivalent DOT-3 brake fluid from a clean, sealed brake fluid container.

Fig 2: Removing/Installing Master Cylinder Reservoir

Courtesy of GENERAL MOTORS CORP.

Install the master cylinder reservoir (1).
Carefully press the master cylinder reservoir into the master cylinder body until the pin holes are aligned.

Fig 3: Identifying Primary Reservoir Retaining Pin

Courtesy of GENERAL MOTORS CORP.

Using a suitable drift from the inboard side of the master cylinder, carefully drive in the primary reservoir retaining pin (1).

Fig 4: Identifying Secondary Reservoir Retaining Pin

Courtesy of GENERAL MOTORS CORP.

Using a suitable drift from the outboard side of the master cylinder, carefully drive in the secondary reservoir retaining pin (1).
Install the master cylinder assembly. Refer to Master Cylinder Replacement .