GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Important: Use care when handling the mass air flow(MAF)/intake air temperature (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.


    Object Number: 750582  Size: SH
  1. Remove the intake air resonator. Refer to Intake Air Resonator Replacement .
  2. Disconnect the MAF/IAT sensor electrical connector (3).

  3. Object Number: 858230  Size: SH
  4. Loosen the MAF/IAT clamp.
  5. 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.


    Object Number: 359112  Size: SH
  1. Locate the air flow direction arrow (2) on the MAF/IAT sensor.
  2. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 858230  Size: SH
  3. Install the MAF/IAT sensor to the air cleaner assembly.
  4. Tighten the MAF/IAT clamp.
  5. Tighten
    Tighten the clamp to 7 N·m (62 lb in).


    Object Number: 750582  Size: SH
  6. Connect the MAF/IAT sensor electrical connector (3).
  7. Install the air intake resonator. Refer to Intake Air Resonator Replacement .