Bank 2

REMOVAL PROCEDURE

CAUTION: Allow the engine to cool before servicing the secondary air injection AIR system in order to reduce the chance of severe burns.

1. Remove the clamps and AIR hoses from the AIR system right pipe.
2. Disconnect the AIR hose from the check valve.
3. Unscrew the check valve from the AIR pipe.
4. Remove the right AIR pipe from the manifold.
5. Before replacing a check valve, test the valve for proper operation.
5.1. Install a vacuum pump to the nipple side of the check valve, AIR pump side.
5.2. Pump the vacuum pump to 10 inches Hg. and observe the gauge.
5.3. Replace the check valve if the vacuum bleeds down to zero within 5 seconds.

INSTALLATION PROCEDURE

NOTE: Refer to Fastener Notice in Service Precautions.

1. Screw the check valve onto the AIR pipe.

Tighten
Tighten the check valve to 23 N.m (17 lb ft).

2. Connect the right AIR pipe to the exhaust manifold.

Tighten
Tighten the AIR pipe to the exhaust manifold to 20 N.m (15 lb ft).

3. Install the hose and the clamp to the check valve.
4. Check the AIR system for proper operation.