GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Cadillac 🢒 2009 🢒 XLR 🢒 Engine 🢒 Engine Cooling 🢒 Air Cleaner Assembly Replacement

Removal Procedure

    Object Number: 1685809 Size: SH
  1. Disconnect the mass air flow (MAF)/intake air temperature (IAT) sensor electrical connector.
  2. Remove the MAF/IAT sensor if necessary. Refer to Mass Airflow Sensor with Intake Air Temperature Sensor Replacement.
  3. Loosen the air cleaner outlet duct clamp at the supercharger inlet duct.
  4. Remove the air cleaner housing from the vehicle.
  5. Remove the air cleaner housing splash shields, if necessary.

Installation Procedure

    Object Number: 1685809 Size: SH

    Note: An improperly installed air cleaner or a distorted or missing intake air duct may cause a diagnostic trouble code (DTC) to set. Ensure that the air cleaner assembly and intake air duct is installed correctly and that there are no kinks or folds in the intake air duct. Debris in the air cleaner assembly or MAF sensor inlet screen, that may distort air flow can set a DTC.

  1. Install the air cleaner housing splash shields to the air cleaner assembly if previously removed.
  2. Install the air cleaner assembly to the vehicle.

    3. Caution: Refer to Fastener Caution in the Preface section.

  3. Tighten the air cleaner outlet duct clamp at the supercharger inlet duct to 3 N·m (27 lb in).
  4. Install the MAF/IAT sensor if previously removed. Refer to Mass Airflow Sensor with Intake Air Temperature Sensor Replacement.
  5. Connect the MAF/IAT sensor electrical connector.