Variable Induction System: Service and Repair

INTAKE MANIFOLD TUNING VALVE REPLACEMENT

REMOVAL PROCEDURE




1. Remove the intake manifold cover.
2. Disconnect the engine harness electrical connector (1) from the intake manifold tuning valve.
3. Remove the power steering pump.




4. Remove the intake manifold tuning valve bolts.
5. 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.
3. Install the intake manifold tuning valve bolts.

NOTE: Refer to Fastener Notice.

Tighten the bolts to 10 N.m (89 lb in).

4. Install the power steering pump.




5. Connect the engine harness electrical connector (1) to the intake manifold tuning valve.
6. Install the intake manifold cover.