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Home >> Chevrolet >> 2007 >> Cobalt L4-2.2L >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Air Injection >> Air Injection Check Valve >> Service and Repair
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Air Injection Check Valve: Service and Repair



Secondary Air Injection Check Valve Replacement

Removal Procedure




1. Remove the intake manifold cover.
2. Disconnect the engine harness electrical connector from the secondary air injection (AIR) check valve.




3. Disconnect the AIR pump outlet hose quick connect fitting at the AIR check valve.




4. Remove the AIR check valve bolts.
5. Remove the AIR check.
6. Remove and discard the AIR check valve gasket.
7. Clean the check valve gasket mating surfaces.

Installation Procedure




1. Install a NEW AIR check valve gasket onto the exhaust manifold.
2. Install the AIR check.

Notice: Refer to Fastener Notice.

3. Install the AIR check valve bolts.

Tighten the bolts to 22 N.m (16 lb ft).




4. Connect the AIR pump outlet hose quick connect fitting at the AIR check valve.




5. Connect the engine harness electrical connector to the AIR check valve.
6. Install the intake manifold cover.

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