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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 997 (Engine Mechanical - 6.6L (Lb7) (Repair Instructions 1 Of 4)) >> Repair Instructions (On-Vehicle & Off Vehicle - Part 1) >> On-Vehicle Repair Instructions >> Intake Manifold Replacement - Left >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the turbocharger. Refer to Turbocharger Replacement .
  2. Remove the left fuel rail. Refer to Fuel Rail Assembly Replacement - Bank 2 in Engine Controls - 6.6 L.
  3. Remove the intake manifold tube. Refer to Intake Manifold Tube Replacement (Federal Emissions)  or Intake Manifold Tube Replacement (California Emissions) .
  4. Remove the intake manifold bolts/nuts.
    IMPORTANT: The intake manifold uses sealer. Pry at the area by the fuel rail bolt holes in order to avoid damage to the sealing surface.
  5. Remove the intake manifold.
    6. Fig 1: View Of Intake Manifold (Left)
    GM660466Courtesy of GENERAL MOTORS CORP.
  6. To prevent entry of debris into the cylinder head, tape the openings.
  7. If required, clean and inspect the intake manifold. Refer to Intake Manifold Cleaning and Inspection .
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