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Home › Chevrolet › 2001 › C3500 HD 8.1 G, Automatic › Repair and Diagnosis › Engine Performance › System › Engine Controls - 8.1L - Repair Instructions › Repair Instructions › Secondary Air Injection Vacuum Check Valve Replacement › Removal Procedure

Removal Procedure

    Fig 1: AIR Pump And Associated Components
    GM349261Courtesy of GENERAL MOTORS COMPANY
  1. Remove vacuum lines from vacuum check valve (4).
  2. Remove the check valve.
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