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Home >> Buick >> 2004 >> Regal LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls 3.8L (Introduction, Service & Replacement) >> Repair Instructions >> Throttle Body Assembly Replacement (L36) >> Installation Procedure
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Installation Procedure

    Fig 1: View Of Throttle Body Assembly
    GM12270Courtesy of GENERAL MOTORS CORP.
  1. Install the new gasket.
  2. Install the throttle body assembly.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the throttle body nuts.

    Tighten:  Tighten the nuts to 10 N.m (89 lb in).

    4. Fig 2: View Of Throttle Body Support Bracket
    GM510497Courtesy of GENERAL MOTORS CORP.
  4. Install the throttle body support bracket.
  5. Install the throttle body support bracket bolts.

    Tighten:  Tighten the bolts to 16 N.m (12 lb ft).

    6. Fig 3: View Of Vacuum Hoses To Throttle Body
    GM180061Courtesy of GENERAL MOTORS CORP.
  6. Install the vacuum hoses to the throttle body.
  7. Install the accelerator controls cable bracket. Refer to Accelerator Controls Cable Bracket Replacement .
    8. Fig 4: Electrical Wiring Harness To The Accelerator Controls Bracket
    GM179374Courtesy of GENERAL MOTORS CORP.
  8. Install the electrical wiring harness (2) to the accelerator controls bracket (3).
    9. Fig 5: View Of MAF Sensor & Electrical Connector
    GM155464Courtesy of GENERAL MOTORS CORP.
  9. Connect the MAF sensor electrical connector.
    10. Fig 6: View Of TP Sensor & Connector
    GM178680Courtesy of GENERAL MOTORS CORP.
  10. Connect the TP sensor electrical connector.
    11. Fig 7: View Of IAC Valve Electrical Connector
    GM155466Courtesy of GENERAL MOTORS CORP.
  11. Connect the IAC valve electrical connector.
  12. Install the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement .
  13. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement (L36) or Fuel Injector Sight Shield Replacement (L67) in Engine Mechanical - 3.8L.
  14. Fill the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
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