GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

  1. Remove the vacuum brake booster check valve from the vacuum brake booster.
  2. Remove the vacuum brake booster hose clamp at the check valve.
  3. Remove the vacuum brake booster check valve from the hose.
  4. Remove the manifold sight shield (4.8L, 5.3L, 6.0L). Refer to Upper Intake Manifold Sight Shield Replacement.

  5. Object Number: 382483  Size: SH
  6. Disconnect the vacuum brake booster hose at the engine (4.8L, 5.3L, 6.0L).

  7. Object Number: 346148  Size: SH
  8. Disconnect the vacuum brake booster hose at the engine (4.3L).
  9. Remove the vacuum brake booster hose from the vehicle.

Installation Procedure


    Object Number: 382483  Size: SH
  1. Connect the vacuum brake booster hose at the engine (4.8L, 5.3L, 6.0L).

  2. Object Number: 346148  Size: SH
  3. Connect the vacuum brake booster hose at the engine (4.3L).
  4. Install the manifold sight shield (4.8L, 5.3L, 6.0L). Refer to Upper Intake Manifold Sight Shield Replacement.
  5. Install the vacuum brake booster check valve to the hose.
  6. Install the vacuum brake booster hose clamp to the check valve.
  7. Install the vacuum brake booster check valve to the vacuum brake booster.