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Home >> Buick >> 2007 >> Lucerne CX >> Repair and Diagnosis >> External Pages >> Different car >> Section 130 (Engine Cooling System) >> Repair Instructions >> Throttle Body Heater Hose/Pipe Replacement - Inlet (LY7) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2006 Buick LaCrosse and 2006 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Throttle Body Heater Inlet Hose/Pipe
    GM802788Courtesy of GENERAL MOTORS CORP.
  1. Position the throttle body heater inlet hose/pipe to the engine.
  2. Connect the throttle body heater inlet hose to the throttle body.
  3. Fig 2: Identifying Throttle Body Heater Inlet Hose/Pipe-To-Intake Plenum Bolt
    GM785825Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install the bolts securing the throttle body heater inlet hose/pipe to the following:
    • The intake plenum (2)
    • The engine rear lift bracket

      Tighten:  Tighten the throttle body heater inlet hose/pipe bolts to 9 N.m (80 In. Lbs.).

  5. Connect the vacuum brake booster hose (3) to the vacuum source.
  6. Connect the following to the front of the throttle body heater inlet hose/pipe:
    • The CMP sensor connector
    • The left knock sensor connector
    • The vacuum pipe retainer
  7. Fig 3: Identifying Coil Pack Electrical Connector
    GM785821Courtesy of GENERAL MOTORS CORP.
  8. Connect the electrical connector (2) to the coil pack (1).
  9. Connect the throttle body heater inlet hose to the water crossover, using 90 degrees needle-nose pliers.
  10. Fig 4: Identifying Heated Oxygen Sensor Connector & Throttle Body Heater Inlet Hose/Pipe
    GM785786Courtesy of GENERAL MOTORS CORP.
  11. Connect the heated oxygen sensor connector (2) to the rear of the throttle body heater inlet hose/pipe (3).
  12. Install the wiper motor module. Refer to Wiper Motor, Wiper System Module Replacement in Wipers/Washer Systems.
  13. Fig 5: Locating Remote Power Steering Fluid Reservoir Mounting Bolts
    GM785730Courtesy of GENERAL MOTORS CORP.
  14. Install the remote power steering fluid reservoir mounting bolts (1, 3).

    Tighten: 

    • Tighten the remote power steering fluid reservoir to intake plenum mounting bolts to 9 N.m (80 In. Lbs.).
    • Tighten the remote power steering fluid reservoir to cylinder head mounting bolt to 25 N.m (18 Ft. Lbs.).

  15. Fig 6: Identifying Engine Wiring Harness & Remote Power Steering Fluid Reservoir
    GM785764Courtesy of GENERAL MOTORS CORP.
  16. Connect the following to the remote power steering fluid reservoir (1):
    • The brake booster hose
    • The wiring harness (2)
  17. Fill the cooling system. Refer to Draining and Filling Cooling System (L26 Static Fill) , Draining and Filling Cooling System (LY7 Static Fill)  or Draining and Filling Cooling System (L26, LY7, GE 47716 Fill) .