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Home >> Pontiac >> 2009 >> Vibe Base, 1.8 8, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System & Fuel System - 1.8L (Lay) - Introduction >> Repair Instructions >> Knock Sensor Replacement >> Removal Procedure

Removal Procedure

    CAUTION: Refer to Battery Disconnect Warning .
  1. Disconnect the cable from the negative battery terminal.
  2. Drain the engine coolant. Refer to Cooling System Draining and Filling .
  3. Remove the engine cover. Refer to Engine Cover Replacement
  4. Remove the air cleaner cap sub-assembly with hose.
    5. Fig 1: Identifying Throttle Body Connector And Water By-Pass Hoses
    GM2016610Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the throttle body connector and the 2 water by-pass hoses.
    6. Fig 2: View Of Wire Harness Clamp
    GM2016652Courtesy of GENERAL MOTORS CORP.
  6. Separate the wire harness clamp and remove the bolt and wire harness bracket.
    7. Fig 3: Identifying Throttle Body Hoses
    GM2016653Courtesy of GENERAL MOTORS CORP.
  7. Separate the 2 hoses.
    8. Fig 4: View Of Throttle Body Ventilation Hose
    GM2016655Courtesy of GENERAL MOTORS CORP.
  8. Separate the ventilation hose.
    9. Fig 5: Identifying Throttle Body Wire Harness Clamps
    GM2016656Courtesy of GENERAL MOTORS CORP.
  9. Separate the 2 wire harness clamps.
    10. Fig 6: View Of Throttle Body Wire Harness Push Pins
    GM2016657Courtesy of GENERAL MOTORS CORP.
  10. Separate the 2 wire harness push pins.
    11. Fig 7: View Of New Gasket, Intake Manifold And Intake Manifold Stay Bolts And Nuts
    GM2016659Courtesy of GENERAL MOTORS CORP.
  11. Remove the 4 bolts and 2 nuts and remove the intake manifold stay and intake manifold with throttle body.
    12. Fig 8: View Of Gasket & Intake Manifold
    GM2016450Courtesy of GENERAL MOTORS CORP.
  12. Remove the gasket from the intake manifold.
    13. Fig 9: Locating Knock Sensor Connector & Bolt
    GM2016661Courtesy of GENERAL MOTORS CORP.
  13. Disconnect the knock sensor connector.
  14. Remove the bolt and remove the knock sensor.
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