Mass Airflow Sensor: Notes
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2002 GMC Yukon XL, 2002 GMC Yukon, 2002 Chevrolet Tahoe, 2002 Chevrolet Suburban, and 2002 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
Take care when handling the Mass Airflow/Intake Air Temperature (MAF/IAT) sensor. DO NOT dent, puncture, or otherwise damage the honey-cell located at the air inlet end of the MAF/IAT. DO NOT touch the sensing elements or allow anything including cleaning solvents and lubricants to come in contact with them. Use a small amount of a non-silicone based lubricant, on the air duct only, to aid in installation. DO NOT drop or roughly handle the MAF/IAT sensor.