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Home >> GMC >> 2009 >> Envoy 4.2 S, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 4.2L - Introduction >> Repair Instructions >> Secondary Air Injection Solenoid Valve Replacement >> Removal Procedure

Removal Procedure

  1. Remove the air cleaner outlet resonator. Refer to Air Cleaner Outlet Resonator Replacement .
    2. Fig 1: View Of Secondary Air Injection (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: Locating Secondary Air Injection Solenoid Valve Components
    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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