K 3500 Truck 4WD V8-6.0L VIN U (2002)
Mass Air Flow (MAF) Sensor: Service and Repair
MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REPLACEMENT
REMOVAL PROCEDURE
IMPORTANT: Use care when handling the mass air flow/intake air temperature (MAF/IAT) sensor. Do not dent, puncture, or otherwise damage the
honeycell located at the air inlet end of the sensor. Do not touch the sensing elements or allow anything including cleaning solvents and/or 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.
1. Remove air outlet duct.
2. Lift up the gray retainer, until a click is heard.
3. Disconnect the sensor electrical connector (4).
4. Loosen the clamp securing the sensor.
5. Remove the sensor.
INSTALLATION PROCEDURE
IMPORTANT: The arrow on the sensor indicates the proper air flow direction. The arrow must point toward the engine.
1. Locate the arrow (2) on the sensor.
