Installation Procedure

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IMPORTANT: If the MAF/IAT sensor is installed backwards, the fuel system goes rich. An arrow cast into the plastic portion of the sensor indicates proper air flow direction. The arrow must point toward the engine.

Fig 1: View Of MAF/IAT Sensor Adapter & Clamp

Courtesy of GENERAL MOTORS CORP.

If the air cleaner assembly was replaced proceed to the following step otherwise proceed to step 5.
Install the MAF/IAT sensor adapter clamp to the air cleaner assembly.
Install the MAF/IAT sensor

NOTE: Refer to Fastener Notice .

Tighten the MAF/IAT sensor adapter clamp.
Tighten: Tighten the clamp to 4 N.m (35 lb in).

Fig 2: View Of Air Cleaner Assembly & Mounting Components

Courtesy of GENERAL MOTORS CORP.

Install the air cleaner assembly.
1. Insert the locator (1) on the right rear of the air cleaner into the inboard side of the slot in the adapter bracket.
2. Slide the air cleaner towards the fender to engage the adapter.
3. Push down on the air cleaner in order to install the retainers (2) into the adapter bracket.

Fig 3: View Of Throttle Body Heater Hose & Retainers

Courtesy of GENERAL MOTORS CORP.

Connect the engine wiring harness electrical connector (2) to the MAF/IAT sensor.
Install the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .