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Home >> GMC >> 2001 >> C3500 HD 8.1 G, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 8.1L - Repair Instructions >> Repair Instructions >> Secondary Air Injection Pump Replacement >> Removal Procedure

Removal Procedure

    Fig 1: Right Rear Of Engine Compartment
    GM334930Courtesy of GENERAL MOTORS COMPANY
  1. Remove the brace (8) attached to the fender and cowl.
  2. Disconnect the electrical connector from the AIR pump (1).
  3. Disconnect the electrical connector from the AIR solenoid valve (6).
    4. Fig 2: AIR Pump And Associated Components
    GM349261Courtesy of GENERAL MOTORS COMPANY
  4. Disconnect the electrical connector from the relay (7).
  5. Remove the hose clamp (12) from the AIR shut-off valve hose (10).
  6. Remove the hose from the AIR shut-off valve (13).
  7. Remove the vacuum line (5) from the AIR solenoid valve (6).
    8. Fig 3: AIR Pump Assembly
    GM334923Courtesy of GENERAL MOTORS COMPANY
  8. Remove the AIR pump assembly hold down fastener (2) and block (3).
  9. Remove the AIR pump assembly (1).
    10. Fig 4: AIR Pump And Associated Components
    GM349261Courtesy of GENERAL MOTORS COMPANY
  10. Release the AIR pump rubber mounting posts (9) from the AIR pump (2).
  11. Remove the AIR hoses (3) , (14) from the AIR pump (2).
  12. Remove the AIR pump (2).
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