Mass Airflow Sensor with Intake Air Temperature Sensor Replacement for Chevrolet Express 2009

1. Loosen the air cleaner outlet duct clamp (1) at the mass airflow (MAF)/Intake air temperature (IAT) sensor.
2. Remove the air cleaner outlet duct (2) from the MAF/IAT sensor and position out of the way.



3. Disconnect the engine wiring harness electrical connector (6) from the MAF/IAT sensor (5).



4. Remove the MAF/IAT sensor bolts (2).
5. Remove the MAF/IAT sensor (1) from the air cleaner housing.

1. Install the MAF/IAT sensor (1) to the air cleaner housing.

Caution: Refer to Fastener Caution in the Preface section.

2. Install the MAF/IAT sensor bolts (2) and tighten to 9 N·m (80 lb in).



3. Connect the engine wiring harness electrical connector (6) to the MAF/IAT sensor (5).



4. Position and install the air cleaner outlet duct (2) to he MAF/IAT sensor.
5. Tighten the air cleaner outlet duct clamp (1) at the MAF/IAT sensor and tighten to 5 N·m (44 lb in).