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Home >> Cadillac >> 2005 >> CTS V >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 5.7L - Introduction >> Repair Instructions >> Throttle Body Assembly Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: View Of Throttle Body
    GM43567Courtesy of GENERAL MOTORS CORP.
  1. Install a new throttle body gasket.
  2. Connect the coolant hoses to the throttle body.
  3. Install the throttle body assembly.
    4. NOTE: Refer to Fastener Notice in Cautions and Notices.
    IMPORTANT: Always use a torque wrench in order to obtain the proper torque.
  4. Install the throttle body attaching bolts.

    Tighten:  Tighten the throttle body bolts to 12 N.m (106 lb in).

    5. Fig 2: Identifying TP Sensor Electrical Connector
    GM51808Courtesy of GENERAL MOTORS CORP.
  5. Connect the TP sensor electrical connector.
  6. Connect the crankcase ventilation hose to the throttle body.
    7. Fig 3: View Of Air Control Valve Electrical Connector
    GM52800Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Ensure that the air control valve electrical connector and the connector seal are properly installed and not damaged.
  7. Connect the air control valve electrical connector.
    8. Fig 4: Loosening Air Cleaner Outlet Duct Clamps
    GM1385108Courtesy of GENERAL MOTORS CORP.
  8. Install the air cleaner outlet duct and clamps (1, 2). Refer to Air Cleaner Outlet Duct Replacement .
  9. Connect the intake air temperature sensor electrical connector.
  10. Refill the cooling system. Refer to Draining and Filling Cooling System (LP1, LY7) or Draining and Filling Cooling System (LS6) in Engine Cooling.
  11. Check for complete throttle opening and closing positions by operating the accelerator pedal. Monitor the throttle angles, using a scan tool. The accelerator pedal should operate freely without binding between full closed throttle and wide open throttle.
  12. Start the engine.
  13. Check for coolant leaks.
  14. Install the fuel injector sight shield. Refer to Fuel Injector Sight Shield Replacement in Engine Mechanical - 5.7L.
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