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.
Air Flow Meter/Sensor: Service and Repair
2009 Chevrolet Malibu V6-3.6LSECTION Service and Repair
Mass Airflow Sensor with Intake Air Temperature Sensor Replacement
Removal Procedure
1. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (Air Cleaner Outlet Duct Replacement).
2. Disconnect the engine wiring harness electrical connector from the mass airflow (MAF)/intake air temperature (IAT) sensor.
3. Remove the MAF/IAT sensor screws.
4. Remove the MAF/IAT sensor.
5. Remove and discard the MAF/IAT sensor seal.
Installation Procedure
1. Install a NEW MAF/IAT sensor seal.
2. Install the MAF/IAT sensor.
Caution: Refer to Fastener Caution (Fastener Caution).
3. Install the MAF/IAT sensor screws and tighten to 4 Nm (35 lb in).
4. Connect the engine wiring harness electrical connector to the MAF/IAT sensor.
5. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement (Air Cleaner Outlet Duct Replacement).
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.