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Home >> GMC >> 2004 >> Envoy 4WD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.2L (Introduction) >> Repair Instructions >> Air Cleaner Outlet Resonator Replacement >> Removal Procedure
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Removal Procedure

    Fig 1: Top Of Engine View
    GM732051Courtesy of GENERAL MOTORS CORP.
  1. Loosen the air cleaner outlet duct and air cleaner outlet resonator clamps (2).
  2. Disconnect the electrical connector from the intake air temperature (IAT) sensor (1).
  3. Disconnect the air cleaner outlet duct from the air cleaner outlet resonator.
  4. Disconnect the fuel pressure regulator vacuum supply from the air cleaner outlet resonator.
    5. Fig 2: Removing/Installing Air Cleaner Outlet Resonator Assembly
    GM730135Courtesy of GENERAL MOTORS CORP.
  5. Remove the two air cleaner outlet resonator to engine bolts (4).
  6. Disconnect the crankcase ventilation hose (1) from the valve cover port (2).
  7. Remove the air cleaner outlet resonator assembly (5) from the engine.
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