Installation 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.

Fig 1: Brake Booster Nuts

Courtesy of GENERAL MOTORS CORP.

Install a new brake booster gasket.

IMPORTANT: An assistant may be necessary to hold the brake booster in place while installing the nuts.

Install the power vacuum brake booster to the vehicle.

NOTE: Refer to Fastener Notice .

IMPORTANT: Tighten the upper right brake booster nut first.

Install the brake booster nuts (1).
Tighten: Tighten the nuts to 33 N.m (24 lb ft).

Fig 2: Stoplamp (Brake Light) Switch

Courtesy of GENERAL MOTORS CORP.

Connect the brake booster pushrod to the brake pedal pivot pin.
Install the stoplamp switch (1).

Fig 3: Brake Booster Pushrod Retainer

Courtesy of GENERAL MOTORS CORP.

Install the brake booster pushrod retainer (1).

Fig 4: Brake Booster Pushrod Retainer Bolt

Courtesy of GENERAL MOTORS CORP.

Install the brake booster pushrod retainer bolt (1).
Tighten: Tighten the bolt to 10 N.m (89 lb in).

Fig 5: View Of DOD Sensor, Booster Connector & Check Valve

Courtesy of GENERAL MOTORS CORP.

Install the vacuum hose to the check valve (3).
Connect the electrical connectors to the DOD sensor (1) and the active booster connector (2).
Install the master cylinder.
Install the 2 master cylinder nuts.
Tighten: Tighten the nuts to 33 N.m (24 lb ft).