GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2007 🢒 CTS 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Air Cleaner Outlet Duct Replacement

Removal Procedure

    Object Number: 1385109 Size: SH
  1. Remove the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .
  2. Disconnect the vacuum hose from the air cleaner outlet duct.
  3. Loosen the air cleaner outlet duct clamps.
  4. Partially remove the air cleaner outlet duct from the air cleaner housing to gain access to the mass air flow/intake air temperature (MAF/IAT) sensor electrical connector.
  5. Disconnect the MAF/IAT sensor electrical connector (1).
  6. Remove the air cleaner outlet duct assembly.
  7. Remove the MAF/IAT if necessary. Loosen the MAF/IAT clamp (2).

    8. Notice: 

       • Handle the MAF sensor carefully.
       • Do not drop the MAF sensor in order to prevent damage to the MAF sensor.
       • Do not damage the screen located on the air inlet end of the MAF.
       • Do not touch the sensing elements.
       • Do not allow solvents and lubricants to come in contact with the sensing elements.
       • Use a small amount of a soap based solution in order to aid in the installation.

  8. Remove the MAF/IAT sensor from the air cleaner outlet duct. Note the position of the MAF/IAT sensor.

Installation Procedure

    Object Number: 1385109 Size: SH

    Notice: 

       • Handle the MAF sensor carefully.
       • Do not drop the MAF sensor in order to prevent damage to the MAF sensor.
       • Do not damage the screen located on the air inlet end of the MAF.
       • Do not touch the sensing elements.
       • Do not allow solvents and lubricants to come in contact with the sensing elements.
       • Use a small amount of a soap based solution in order to aid in the installation.

  1. If previously removed, carefully install the MAF/IAT sensor to the air cleaner outlet duct. Ensure that sensor is clocked properly.

    2. Notice: Refer to Fastener Notice in the Preface section.

  2. Tighten the MAF/IAT sensor clamp (2).

    3. Tighten
    Tighten the clamp to 3 N·m (27 lb in).

  3. Loosely install the air cleaner outlet duct assembly to the vehicle.
  4. Connect the MAF/IAT sensor electrical connector.
  5. Install the air cleaner outlet duct to the air cleaner housing.
  6. Tighten the air cleaner outlet duct clamps.

    7. Tighten
    Tighten the screws to 3 N·m (27 lb in).

  7. Connect the vacuum hose to the air cleaner outlet duct.
  8. Install the engine sight shield. Refer to Upper Intake Manifold Sight Shield Replacement .