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Home >> GMC >> 2004 >> Envoy RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.2L (Introduction) >> Repair Instructions >> Air Cleaner Outlet Resonator Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: Removing/Installing Air Cleaner Outlet Resonator Assembly
    GM730135Courtesy of GENERAL MOTORS CORP.
  1. Install the air cleaner outlet resonator assembly (5) to the engine making sure of the following:
    • 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.
    2. NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the two air cleaner outlet resonator to engine bolts (4).

    Tighten:  Tighten the resonator to engine bolts to 6 N.m (53 lb in).

    3. Fig 2: Top Of Engine View
    GM732051Courtesy of GENERAL MOTORS CORP.
  3. Connect the fuel pressure regulator vacuum supply to the air cleaner outlet resonator.
  4. Connect the air cleaner outlet duct to the air cleaner outlet resonator.
  5. Connect the electrical connector to the intake air temperature (IAT) sensor (1).
  6. Properly position the air cleaner outlet duct and air cleaner outlet resonator clamps (2).

    Tighten:  Tighten the clamps (2) to 4 N.m (35 lb in).

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