Envoy 4WD V8-5.3L VIN P (2004)
7. Remove the vacuum booster mounting nuts.
8. Remove the vacuum booster assembly.
9. Remove the gasket.
Installation Procedure
1. Install the gasket and the vacuum booster assembly.
Notice: Refer to Fastener Notice in Service Precautions.
2. Install the vacuum booster mounting nuts on the vacuum booster.
Tighten the vacuum booster mounting nuts to 40 Nm (30 ft. lbs.).
3. Position the stop lamp switch (1) on the pushrod (2) and install on the brake pedal pin .
4. Install the pushrod retainer (3) to the brake pedal pin (4). The retainer will snap into place.
