Removal Procedure

CAUTION: Refer to Brake Fluid Irritant Caution in Cautions and Notices.

NOTE: Refer to Brake Fluid Effects on Paint and Electrical Components Notice in Cautions and Notices.

NOTE: Internal components of this booster are not serviceable. The housing must not be unstaked and separated. Separating the housing will cause permanent deformation, preventing the booster from holding proper volume.

Remove the brake master cylinder. Refer to Master Cylinder Replacement (Non-ABS) or Master Cylinder Replacement (ABS) .

Fig 1: Removing/Installing Brake Hose

Courtesy of GENERAL MOTORS CORP.

Remove the left front brake pipe.

Fig 2: Cruise Control Bolts And Nuts

Courtesy of GENERAL MOTORS CORP.

If the vehicle has cruise control, remove the 2 nuts (2,3) and the bolt (1) from the bracket in order to move the cruise control actuator to the side.
Loosen the hose clamp and remove the vacuum hose from the check valve.
Remove the check valve from the booster.
Remove the check valve grommet from the booster.

Fig 3: Brake Pedal Components

Courtesy of GENERAL MOTORS CORP.

Remove the clip (7) from the push rod clevis pin (9).
Remove the push rod clevis pin and the washer from the push rod clevis (8).
Use paint in order to mark the location of the clevis and the nut on the booster push rod.
Remove the clevis from the push rod.
Remove the clevis nut from the push rod.

Fig 4: Removing/Installing Brake Pipes

Courtesy of GENERAL MOTORS CORP.

Remove the 4 nuts.
Pull 2 or 3 brake pipes out of the bulkhead clamp, as necessary.
Remove the booster and the gasket from the bulkhead.