Removal Procedure
- Remove the intake manifold. Refer to Intake Manifold Replacement (RPOs LY2/LY6) or Intake Manifold Replacement (RPOs LC9/LMG/LY5/L76) or Intake Manifold Replacement (RPO L92 - First Design) or Intake Manifold Replacement (RPO L92 - Second Design) .
- Reposition the brake booster vacuum hose clamp at the intake manifold.
- Remove the brake booster vacuum hose from the intake manifold nipple.
- Remove the upper intake manifold cover nut.
- Remove the upper intake manifold cover.