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Home >> Chevrolet >> 2005 >> Impala Base, 3.4 E >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 3.4L - Introduction (2 Of 2) >> Repair Instructions >> Throttle Body Assembly Replacement >> Installation Procedure

Installation Procedure

    Fig 1: Throttle Body Assembly
    GM12688Courtesy of GENERAL MOTORS CORP.
  1. Install a new gasket, if necessary.
  2. Install the throttle body assembly.
    3. NOTE: Refer to Fastener Notice in Cautions and Notices.
  3. Install the throttle body nuts and the bolts.

    Tighten:  Tighten the nuts and the bolts to 28 N.m (21 lb ft).

    4. Fig 2: View Of Throttle Body Hoses, Heater Outlet Hose & Thermostat Bypass Pipe
    GM622761Courtesy of GENERAL MOTORS CORP.
  4. Install the inlet (3) and the outlet (4) hoses to the throttle body.
    5. Fig 3: Locating Heater Pipe Nut
    GM54419Courtesy of GENERAL MOTORS CORP.
  5. Install the heater pipe nut to the throttle body.

    Tighten:  Tighten the nut to 25 N.m (18 lb ft).

    6. Fig 4: View Of TP Sensor & Electrical Connector
    GM69065Courtesy of GENERAL MOTORS CORP.
  6. Connect the TP sensor electrical connector.
    7. Fig 5: View Of IAC Valve Electrical Connector
    GM69056Courtesy of GENERAL MOTORS CORP.
  7. Connect the IAC valve electrical connector.
  8. Install the accelerator controls cable bracket. Refer to Accelerator Controls Cable Bracket Replacement .
  9. Install the air cleaner intake duct. Refer to Air Cleaner Intake Duct Replacement .
  10. Fill the cooling system. Refer to Draining and Filling Cooling System in Engine Cooling.
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