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Home >> Cadillac >> 2008 >> STS V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 4.4L - Introduction >> Repair Instructions >> Air Cleaner Assembly Replacement >> Installation Procedure
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Installation Procedure

IMPORTANT: 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.
    Fig 1: Air Cleaner Housing Splash Shield Clip
    GM1613994Courtesy of GENERAL MOTORS CORP.
  1. Install the air cleaner housing splash shield to the vehicle if previously removed.
  2. Install the air cleaner assembly into the vehicle.
    3. NOTE: Refer to Fastener Notice .
  3. Install the air cleaner assembly bolts (1,2).

    Tighten:  Tighten the air cleaner assembly bolts to 10 N.m (89 lb in).

  4. Install the air cleaner housing splash shield clip (1).
  5. Install the coolant hose to the retaining feature on the top of the air cleaner assembly.
  6. Install the MAF/IAT sensor if previously removed. Refer to Mass Airflow Sensor/Intake Air Temperature Sensor Replacement .
  7. Connect the MAF/IAT sensor electrical connector.
    8. Fig 2: Air Cleaner Outlet Duct
    GM1614080Courtesy of GENERAL MOTORS CORP.
  8. Install the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
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