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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1415 (Engine Control System - 4.2L (Introduction)) >> Repair Instructions >> Secondary Air Injection (AIR) Solenoid Valve Replacement >> Removal Procedure

Removal 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.
  1. Remove the air cleaner outlet duct. Refer to Air Cleaner Resonator Outlet Duct Replacement .
    2. Fig 1: Disconnecting/Connecting Electrical Connector & Air Outlet Pipe From AIR Solenoid Valve
    GM1297815Courtesy of GENERAL MOTORS CORP.
  2. Disconnect the electrical connector from the secondary air injection (AIR) reaction solenoid valve.
  3. Disconnect the AIR pump air outlet pipe from the AIR solenoid valve.
    4. Fig 2: Removing/Installing AIR Solenoid Valve
    GM1304735Courtesy of GENERAL MOTORS CORP.
  4. Remove the nut (1) securing the transmission fluid level indicator tube (2) to the AIR solenoid valve.
  5. Remove the transmission fluid level indicator tube (2) from the AIR solenoid valve stud (3).
  6. Remove the 2 AIR solenoid valve studs (3).
  7. Remove the AIR solenoid valve (4) and the gasket (5) from the engine.
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