GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2009 🢒 TrailBlazer - 4WD 🢒 Engine 🢒 Engine Controls and Fuel - 4.2L 🢒 Air Cleaner Outlet Resonator Replacement

Removal Procedure

    Object Number: 732051 Size: SH
  1. Loosen the air cleaner outlet duct and air cleaner outlet resonator clamps (2).
  2. Disconnect the air cleaner outlet duct from the air cleaner outlet resonator (3).

    3. Object Number: 730135 Size: SH
  3. Remove the 2 air cleaner outlet resonator to engine bolts (4).
  4. Disconnect the crankcase ventilation hose (1) from the valve cover port (2).
  5. Disconnect the electrical connector to the intake air temperature (IAT) sensor.
  6. Remove the air cleaner outlet resonator assembly (5) from the engine.

Installation Procedure
  1. Connect the electrical connector to the IAT sensor.

    2. Object Number: 730135 Size: SH
  2. Install the air cleaner outlet resonator assembly (5) to the engine making sure of the following:
    3. • The crankcase ventilation hose (1) is connected to the valve cover port (2).
    • The air cleaner outlet resonator (5) is properly fit to the throttle body assembly.

    Caution: Refer to Fastener Caution in the Preface section.

  3. Install the 2 air cleaner outlet resonator to engine bolts (4) and tighten to 6 N·m (53 lb in).

    4. Object Number: 732051 Size: SH
  4. Connect the air cleaner outlet duct to the air cleaner outlet resonator (3).
  5. Properly position the air cleaner outlet duct and air cleaner outlet resonator clamps (2) then tighten to 4 N·m (35 lb in).