Envoy 2WD V8-5.3L (2007)
Air Flow Meter/Sensor: Service and Repair
Mass Airflow Sensor/Intake Air Temperature Sensor Replacement
Removal Procedure
Important: Use care when handling the mass air flow (MAF)/intake air temperature (IAT) sensor. Do not dent, puncture, or otherwise damage
the honeycell located at the air inlet end of the MAF/IAT. Do not touch the sensing elements or allow anything including cleaning solvents and
lubricants to come in contact with them. Use a small amount of a non-silicone based lubricant, on the air duct only, to aid in installation.
1. Disconnect the MAF/IAT sensor electrical connector.
2. Loosen the clamps at the MAF/IAT sensor and the throttle body.
3. Remove the air cleaner outlet duct bolt.
4. Remove the air cleaner outlet duct.
5. Loosen the clamp attaching the MAF/IAT sensor to the air cleaner housing.
6. Remove the MAF/IAT sensor from the air cleaner housing.
Installation Procedure
Important: The embossed arrow on the MAF/IAT sensor indicates the proper air flow direction. The arrow must point toward the engine.
