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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 958 (Engine Mechanical - 6.6L (2 Of 5)) >> On-Vehicle Repair Instructions >> Center Intake Manifold Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: View Of Center Intake Manifold
    GM1335931Courtesy of GENERAL MOTORS CORP.
  1. Install NEW center intake manifold gaskets.
  2. Install the center intake manifold.
    NOTE: Refer to Fastener Notice .
  3. Install the center intake manifold bolts/nuts.

    Tighten:  Tighten the bolts/nuts to 10 N.m (89 lb in).

    4. Fig 2: View Of IAT Sensor & Electrical Connector
    GM1602068Courtesy of GENERAL MOTORS CORP.
  4. Install the IAT sensor (2).

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

  5. Connect the IAT sensor electrical connector (1).
  6. Install the turbocharger. Refer to Turbocharger Replacement .
    7. Fig 3: View Of Intake Manifold Tube
    GM1873384Courtesy of GENERAL MOTORS CORP.
  7. Install 2 NEW O-rings onto the intake manifold tube.
  8. Lubricate the O-rings with clean engine oil to aid in the installation.
  9. Install the intake manifold tube.
  10. Install the water outlet tube. Refer to Water Outlet Tube Replacement (LMM) or Water Outlet Tube Replacement (LU3) .
  11. Install the EGR valve cooler tube. Refer to Exhaust Gas Recirculation Valve Cooler Replacement .
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