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Home >> Pontiac >> 2009 >> Vibe GT, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 2.4L (Lax) - Introduction >> Repair Instructions >> Knock Sensor Replacement >> Removal Procedure

Removal Procedure

  1. Discharge fuel system pressure.
  2. Drain coolant.
  3. Remove front wiper arm head cap.
  4. Remove left front wiper arm and blade assembly.
  5. Remove right front wiper arm and blade assembly.
  6. Remove hood to cowl top seal.
  7. Remove right cowl top ventilator louver.
  8. Remove left cowl top ventilator louver.
  9. Remove windshield wiper motor and link assembly.
  10. Remove outer cowl top panel.
  11. Remove No. 1 engine cover sub-assembly.
  12. Remove air cleaner cap sub-assembly with No. 1 air cleaner hose.
  13. Remove throttle body assembly.
  14. Remove fuel tube sub-assembly.
  15. Remove fuel delivery pipe sub-assembly with fuel tube sub-assembly.
    16. Fig 1: Identifying Ventilation Hose
    GM2016561Courtesy of GENERAL MOTORS CORP.
  16. Remove intake manifold.
  17. Disconnect the ventilation hose.
    18. Fig 2: Locating Intake Manifold Wire Harness Clamp
    GM2016564Courtesy of GENERAL MOTORS CORP.
  18. Disconnect the union to check valve hose.
  19. Separate the wire harness clamp from the intake manifold.
    20. Fig 3: Identifying Intake Manifold Bolts
    GM2016566Courtesy of GENERAL MOTORS CORP.
  20. Remove the 5 bolts, 2 nuts and intake manifold.
    21. Fig 4: View Of Intake Manifold Gasket
    GM2016196Courtesy of GENERAL MOTORS CORP.
  21. Remove the intake manifold gasket.
  22. Remove No. 1 intake manifold insulator.
    23. Fig 5: Locating Sensor Connector
    GM2016567Courtesy of GENERAL MOTORS CORP.
  23. Disconnect the sensor connector.
  24. Remove the nut and knock sensor.
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