Variable Induction Control Valve: Service and Repair

Intake Manifold Tuning Valve Replacement

Removal Procedure




1. Remove the intake manifold cover. Refer to Intake Manifold Cover Replacement (Service and Repair).
2. Disconnect the intake manifold tuning valve electrical connector (1).
3. Remove the engine harness clip from the power steering reservoir bracket.
4. Remove the power steering pump. Refer to Power Steering Pump Replacement (LZ4, LZ9) (Service and Repair).




5. Remove the intake manifold tuning valve bolts.
6. Remove the intake manifold tuning valve.

Installation Procedure




1. Apply lubricate GM P/N 1051344 (Canadian P/N 993037) to the nose of the valve blade (1).




2. Install the intake manifold tuning valve.
Caution: Refer to Fastener Caution (Fastener Caution).

3. Install the intake manifold tuning valve bolts.

Tighten the bolts to 10 Nm (89 lb in).

4. Install the power steering pump. Refer to Power Steering Pump Replacement (LZ4, LZ9) (Service and Repair).




5. Install the engine harness clip to the power steering reservoir bracket.
6. Connect the intake manifold tuning valve electrical connector (1).
7. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement (Service and Repair).