2006 Hummer H2 V8-6.0LFACTORY OEM SERVICE PROCEDURE

Air Flow Meter/Sensor: Service and Repair



MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR REPLACEMENT

REMOVAL PROCEDURE

IMPORTANT: Take care when handling the mass air flow/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.

Factory service manual diagram



1. Remove air intake resonator.
2. Disconnect the MAF/IAT sensor electrical connector.
3. Loosen the clamp securing the MAF/IAT sensor to the air cleaner housing.
4. Remove the MAF/IAT sensor from the air cleaner assembly.

INSTALLATION PROCEDURE

IMPORTANT: The embossed arrow on the MAF/IAT sensor indicates the proper air flow direction. The arrow must point toward the engine.

Factory service manual diagram



1. Locate the air flow direction arrow (2) on the MAF/IAT sensor.

Factory service manual diagram



2. Install the MAF/IAT sensor on to the air cleaner housing.
3. Tighten the clamp securing the MAF/IAT sensor to the air cleaner housing.
4. Connect the MAF/IAT electrical connector.
5. Install air intake resonator.
Factory Service Tools

Use the Manual With the Right Hardware

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.

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