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Home >> GMC >> 2002 >> Jimmy 2D Utility, Part Time, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 1418 (Engine Control System - 4.2L (Introduction)) >> Repair Instructions >> Secondary Air Injection (AIR) Pipe Replacement >> Installation Procedure

Installation Procedure

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2004 Oldsmobile Bravada, 2004 GMC Envoy XUV, 2004 GMC Envoy XL, 2004 GMC Envoy, and 2004 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing AIR Pipe From Cylinder Head
    GM1297756Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  1. Install the bolt and fir-tree fasteners securing the AIR pipe to the cylinder head.

    Tighten:  Tighten the bolt to 10 N.m (89 lb in).

  2. Install the cylinder head. Refer to Cylinder Head Replacement in Engine Mechanical - 4.2L.
  3. Raise the vehicle. Refer to Lifting and Jacking the Vehicle in General Information.
    4. Fig 2: Disconnecting/Connecting Air Inlet & Outlet Pipes From AIR Pump
    GM1297763Courtesy of GENERAL MOTORS CORP.
  4. Connect both the air inlet and air outlet pipe to the AIR pump.
  5. Lower the vehicle.
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