Important: Take care when handling the mass air flow (MAF). DO NOT dent, puncture, or otherwise damage the honeywell located at the air inlet end of the MAF. DO NOT touch the sensing elements or allow anything, including solvents and lubricants, to come in contact with them. A small amount of GM lubricant P/N 99855406 may be used on the air duct only to aid in installation. DO NOT drop or roughly handle the MAF.

1. Disconnect the 3 wire electrical connector.
2. Remove the air cleaner assembly. Refer to Air Cleaner Assembly Replacement .



3. Loosen the clamps on the MAF sensor.
4. Carefully remove the MAF sensor.

1. Install the MAF sensor.
2. Tighten the clamp on the MAF sensor.
3. Install the air cleaner. Refer to Air Cleaner Assembly Replacement .
4. Connect the MAF sensor electrical connector.