Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2007COBALT L4-2.2LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSAIR INJECTIONAIR INJECTION PUMPSERVICE AND REPAIR
2007 Chevrolet Cobalt L4-2.2L
Air Injection Pump: Service and Repair
2007 Chevrolet Cobalt L4-2.2LSECTION Service and Repair
Secondary Air Injection Pump Replacement
Removal Procedure
1. Raise and suitably support the vehicle. Refer to Vehicle Lifting.
2. Disconnect the engine harness electrical connector from the secondary air injection (AIR) pump.
3. Disconnect the AIR pump inlet hose quick connect fitting at the AIR pump.
4. Reposition the hose out of the way.
5. Disconnect the AIR pump outlet hose quick connect fitting at the AIR pump.
6. Reposition the hose out of the way.
7. Remove the AIR pump bolts.
8. Remove the AIR pump.
Installation Procedure
1. Position the AIR pump to the oil pan.
Notice: Refer to Fastener Notice.
2. Install the AIR pump bolts.
Tighten the bolts to 20 N.m (15 lb ft).
3. Position and connect the AIR pump outlet hose quick connect fitting at the AIR pump. Refer to Plastic Collar Quick Connect Fitting Service.
4. Position and connect the AIR pump inlet hose quick connect fitting at the AIR pump. Refer to Plastic Collar Quick Connect Fitting Service.
5. Connect the engine harness electrical connector to the AIR pump.
6. Lower the vehicle.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.