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Home › Buick › 2006 › Lucerne CXS › Repair and Diagnosis › Engine Performance › System › Engine Controls - 4.6L - Introduction (2 Of 2) › Repair Instructions › Throttle Body Assembly Replacement › Removal Procedure

Removal Procedure

  1. Remove the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement .
  2. Remove the air cleaner outlet duct. Refer to Air Cleaner Outlet Duct Replacement .
    3. Fig 1: Identifying PCV Fresh Air Tube
    GM1661022Courtesy of GENERAL MOTORS CORP.
  3. Disconnect the positive crankcase ventilation (PCV) fresh air tube quick connect fittings at the camshaft cover and the air cleaner outlet duct. Refer to Plastic Collar Quick Connect Fitting Service .
  4. Remove the PCV fresh air tube.
    5. Fig 2: Identifying Engine Harness Electrical Connectors
    GM1662120Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the engine harness electrical connector (5) from the throttle actuator.
    6. Fig 3: Identifying Transaxle Vent Hose Clip
    GM1670281Courtesy of GENERAL MOTORS CORP.
  6. Remove the transaxle vent hose clip (1) from the shift cable bracket.
    7. Fig 4: Identifying Transaxle Shift Cable
    GM1664517Courtesy of GENERAL MOTORS CORP.
  7. Remove the transaxle shift cable clip from the shift cable bracket.
    8. Fig 5: View Of Throttle Body Assembly
    GM1564198Courtesy of GENERAL MOTORS CORP.
  8. Remove the throttle body bolts.
  9. Remove the shift cable bracket.
  10. Remove the throttle body.
  11. Remove and discard the throttle body seal.
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