gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Brake Assist System Diagnosis (Vacuum Assist)|Page 12469 > < Brake Assist System Diagnosis (Vacuum Assist)|Page 12467
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9. Remove the gasket from the booster and discard.

Installation Procedure

1. Install the gasket to the booster
2. Install the vacuum booster. 

Notice:  Refer to Fastener Notice in Service Precautions.

3. Install the vacuum booster mounting nuts.

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Tighten the nuts to 36 Nm (27 ft. lbs.).

4. Install the pushrod (3) to the brake pedal stud (1).
5. Install the stoplamp switch (2).
6. Connect the electrical connection to the stop lamp switch.
7. Install the vacuum hose at the booster.

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