GM Service Manual Online
For 1990-2009 cars only

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 sensor. 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.


    Object Number: 626265  Size: SH
  1. Remove the engine dress cover (2).
  2. Remove the upper plastic wiper arm cowl cover (1).
  3. Remove the center plastic wiper arm cowl.
  4. Remove the air cleaner intake duct (3) assembly.
  5. Remove the right side engine dress cover mounting bracket.

  6. Object Number: 626236  Size: SH
  7. Remove the MAF/IAT sensor electrical connector.
  8. Loosen the clamp at the rear of the MAF/IAT sensor (1) which is connected to the throttle body extension.
  9. Remove the MAF/IAT sensor (1)

Installation Procedure

Important: The embossed arrows on the MAF/IAT sensor indicate the proper air flow direction. The arrows must point toward the engine.


    Object Number: 626236  Size: SH
  1. Install the MAF/IAT sensor (1) to the throttle body extension.
  2. Tighten the clamp.

  3. Install the electrical connector to the MAF/IAT sensor.

  4. Object Number: 626265  Size: SH
  5. Install the air intake duct assembly (2), the MAF/IAT sensor, and the air filter assembly.
  6. Install the right engine dress cover mounting bracket.
  7. Install the center plastic wiper arm cowl.
  8. Install the upper plastic wiper arm cowl (1).
  9. Install the engine dress cover (1).