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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1072 (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 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis 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) .
  11. Install the EGR valve cooler tube. Refer to Exhaust Gas Recirculation Valve Cooler Replacement .
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