Sierra 1500 2WD V6-4.3L VIN X (2004)
Air Flow Meter/Sensor: Service and Repair
MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REPLACEMENT
REMOVAL PROCEDURE
1. Disconnect the mass air flow/intake air temperature (MAF/IAT) sensor electrical connector (4).
2. Loosen the air cleaner outlet duct clamp at the MAF/IAT sensor.
3. Remove the air cleaner outlet duct from the MAF/IAT sensor.
NOTE: Handle the MAF/IAT sensor carefully. Do not drop the MAF/IAT sensor. Do not damage the screen located at the air inlet end of the
MAF/IAT. Do not touch the sensing elements. Do not allow solvents and lubricants to come in contact with the sensing elements. Use a small amount
of SPO P/N 12345884 lubricant or the soap based equivalent in order to aid in the installation.
4. Loosen the MAF/IAT sensor clamp at the air cleaner box.
