Mass Air Flow/Intake Air Temperature Sensor (5.3L): Installation

WARNING: This page is about a different car, the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, and 2003 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

The embossed arrow on the MAF/IAT sensor indicates the proper air flow direction. The arrow must point toward the engine. Locate the air flow direction arrow (2) on the MAF/IAT sensor connector. See Fig 3.
Install the MAF/IAT sensor on to the air cleaner housing.
Tighten the clamp securing the MAF/IAT sensor to the air cleaner housing. See Fig 2.
Install the air cleaner outlet duct.
Install the air cleaner outlet duct bolt. Tighten the bolt to specification. See TORQUE SPECIFICATIONS .
Tighten the clamps at the MAF/IAT sensor and the throttle body. See TORQUE SPECIFICATIONS .
Connect the MAF/IAT electrical. See Fig 1.

Fig 1: Removing & Installing Mass Air Flow/Intake Air Temperature Sensor (1 Of 3)

Courtesy of GENERAL MOTORS CORP.

Fig 2: Removing & Installing Mass Air Flow/Intake Air Temperature Sensor (2 Of 3)

Courtesy of GENERAL MOTORS CORP.

Fig 3: Removing & Installing Mass Air Flow/Intake Air Temperature Sensor (3 Of 3)

Courtesy of GENERAL MOTORS CORP.