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Home >> Chevrolet >> 2011 >> Impala LTZ >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 3.9L - Repair Instructions >> Repair Instructions >> Air Cleaner Assembly Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: Lower Air Cleaner Housing
    GM1554550Courtesy of GENERAL MOTORS CORP.
  1. Install the lower air cleaner housing by pushing the housing down, into the 2 rubber grommets on the inner rail.
  2. Install the TCM and the harness to the lower air cleaner housing.
  3. Install the PCM and the harness to the lower air cleaner housing.
  4. Fig 2: Upper Air Cleaner Housing
    GM1554546Courtesy of GENERAL MOTORS CORP.
  5. Install the air cleaner outlet duct to the air cleaner assembly.
  6. CAUTION: Refer to Fastener Caution .
  7. Tighten the air cleaner outlet duct clamp at the air cleaner assembly.

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

  8. Install the upper air cleaner housing to the lower housing. Engage the tabs on the upper housing to the slots on the lower housing.
  9. Connect the MAF sensor electrical connector.
  10. Fig 3: View Of PCV Tube & Air Inlet Duct
    GM1608799Courtesy of GENERAL MOTORS CORP.
  11. Connect the PCV tube to the air inlet duct. Refer to Plastic Collar Quick Connect Fitting Service .
  12. Install the air cleaner outlet duct to the throttle body.
  13. Tighten the air cleaner outlet duct clamp at the throttle body.

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

  14. Install the left inner fender brace. Refer to Front Fender Upper Diagonal Brace Replacement .
  15. Install the intake manifold cover. Refer to Intake Manifold Cover Replacement .