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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1401 (Engine Mechanical - 6.6L (2 Of 5)) >> Repair Instructions - On Vehicle >> Intake Manifold Tube Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Intake Manifold Tube
    GM1873384Courtesy of GENERAL MOTORS CORP.
  1. If necessary, install NEW O-ring seals onto the tube.
  2. If necessary, install the intake manifold tube.
    3. Fig 2: View Of Air Inlet Tube & Components
    GM1873444Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Fastener Caution .
  3. Install the air inlet tube and NEW gaskets.
  4. Install the air inlet tube nuts and bolt.

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

  5. Connect the intake air heater electrical connector.
  6. Connect the MAP sensor electrical connector.
  7. Install the engine harness clip to the air inlet tube.
    8. Fig 3: View Of Air Inlet Tube To Intake Manifold Tube Bolt & Nut
    GM1873422Courtesy of GENERAL MOTORS CORP.
  8. Install the air inlet tube to intake manifold tube bolt and nut.

    Tighten:  Tighten the bolt/nut to 10 N.m (89 lb in).

    9. Fig 4: View Of Electrical Harness Bolts
    GM1873415Courtesy of GENERAL MOTORS CORP.
  9. Install the electrical harness bolts (1).

    Tighten:  Tighten the bolts to 4 N.m (35 lb in).

    10. Fig 5: View Of Engine Wiring Harness Lead, Nut & Cover
    GM1871196Courtesy of GENERAL MOTORS CORP.
  10. Install the engine wiring harness lead (3) to the IAH stud.
  11. Install the engine wiring harness lead nut (1) to the IAH stud.

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

  12. Close the IAH harness lead cover (2).
  13. Connect the negative battery cables. Refer to Battery Negative Cable Disconnection and Connection (With Single Battery) , Battery Negative Cable Disconnection and Connection (With Auxiliary Battery) or Battery Negative Cable Disconnection and Connection (With Dual Batteries) .
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