Mass Airflow Sensor with Intake Air Temperature Sensor Replacement for Chevrolet Caprice WM 2009

1. Remove the radiator and air baffle. Refer to Radiator Air Upper Baffle and Deflector Replacement .



2. Disconnect the mass air flow (MAF)/air intake temperature (IAT) wiring harness connector (2) to mass air flow (MAF)/air intake temperature (IAT) sensor (1).



3. Loosen the air intake duct to MAF/IAT sensor retaining clamp (2).
4. Loosen the upper air cleaner body to MAF/IAT sensor retaining clamp (1).
5. Remove the air intake duct from the mass air flow MAF/IAT sensor.
6. Remove the MAF/IAT sensor (3) from the upper air cleaner body.

Important:  Make sure that the arrow on the MAF/IAT sensor is pointing to the front, radiator, indicate the proper air flow direction. The arrow must point toward the engine.

1. Install the MAF/IAT sensor to the upper air cleaner body.
2. Install the air intake duct to the MAF/IAT sensor.
3. Position the retaining clamps (1 and 2) to the MAF/IAT sensor.

Notice: Refer to Fastener Notice in the Preface section.

4. Tighten the MAF/IAT retaining clamps (1 and 2).

Tighten
Tighten the clamps to 4  N·m (35 lb in).




5. Connect the MAF/IAT wiring harness connector (2) to the MAF/IAT sensor.
6. If re-programming is required. Refer to Control Module References .
7. Install the radiator and air baffle. Refer to Radiator Air Upper Baffle and Deflector Replacement .