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Home >> Buick >> 2008 >> Allure CXL >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Engine Mechanical - 3.6L (2 Of 5)) >> On-Vehicle Repair Information (1 Of 2) >> Upper Intake Manifold Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Assemble the intake manifold if necessary. Refer to Intake Manifold Assemble .
    2. Fig 1: View Of Upper Intake Manifold
    GM1401466Courtesy of GENERAL MOTORS CORP.
  2. Install the intake manifold.
    3. Fig 2: Identifying Intake Manifold Bolts
    GM1401463Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  3. Install the intake manifold bolts (1-6).

    Tighten:  Tighten the intake manifold bolts in the order shown to 23 N.m (17 lb ft).

    4. Fig 3: Locating PCV Dirty Air Tube
    GM1394081Courtesy of GENERAL MOTORS CORP.
  4. Install the PCV hose to the intake manifold.
  5. Install the brake booster vacuum hose and check valve to the brake booster.
    6. Fig 4: Identifying Throttle Body Electrical Connector
    GM1394050Courtesy of GENERAL MOTORS CORP.
  6. Install the throttle body electrical connector.
  7. Reconnect the electrical connector for the BARO sensor.
  8. Install the fuel injector electrical connector to the fuel injector electrical connector bracket.
    9. Fig 5: View Of Fuel Injector Electrical Connector
    GM1394055Courtesy of GENERAL MOTORS CORP.
  9. Connect the fuel injector electrical connector.
    10. Fig 6: Identifying Wiring Harness Bracket Bolts On Right Side Of Intake Manifold
    GM1394052Courtesy of GENERAL MOTORS CORP.
  10. Install the wiring harness and bracket to the right side of the intake manifold.

    Tighten:  Tighten the wiring harness bracket bolts to 10 N.m (89 lb in).

    11. Fig 7: Identifying Purge Valve Solenoid Electrical Connector
    GM1394073Courtesy of GENERAL MOTORS CORP.
  11. Connect the purge solenoid electrical connector.
  12. Install the ECM bracket with the ECM. Refer to Engine Control Module Replacement .
    13. Fig 8: View Of Fuel Feed Hose Bracket Bolt
    GM1401470Courtesy of GENERAL MOTORS CORP.
  13. Install the fuel feed hose bracket and the fuel feed hose bracket bolt.

    Tighten:  Tighten the fuel feed hose bracket bolt to 10 N.m (89 lb in).

    14. Fig 9: Identifying Purge Line Retainer
    GM1401471Courtesy of GENERAL MOTORS CORP.
  14. Install the purge line to the purge line retainer.
  15. Install the fuel pressure and EVAP hoses to the engine. Refer to Metal Collar Quick Connect Fitting Service and Plastic Collar Quick Connect Fitting Service .
  16. Install the air inlet duct. Refer to Air Cleaner Inlet Duct Replacement .
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