K 1500 Truck 4WD V8-4.8L VIN V (1999)
Intake Air Temperature (IAT) Sensor: Service and Repair
REMOVAL PROCEDURE
IMPORTANT: Take care when handling the MAF/IAT sensor. Do not dent, puncture, or otherwise damage the Honeycell 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.
1. Loosen the clamps (1, 3) at the MAF/IAT sensor (4) and at the throttle body.
2. Remove the air intake duct (2) from the MAF/IAT sensor and the throttle body.
3. Disconnect the MAF/IAT sensor electrical connector.
4. Loosen the clamp securing the MAF/IAT (4) sensor to the air cleaner housing (5).
5. Remove the MAF/IAT (4) sensor from the air cleaner assembly (5).
INSTALLATION PROCEDURE
IMPORTANT: The embossed arrow on the MAF/IAT sensor indicate the proper air flow direction. The arrow must point toward the engine.
1. Locate the air flow direction arrow (2) on the MAF/IAT sensor.
