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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 959 (Engine Mechanical - 4.8L, 5.3L, 6.0L And 6.2L (4 Of 5)) >> Off-Vehicle Repair Instructions (2 Of 3) >> Intake Manifold Cleaning and Inspection >> Cleaning Procedure

Cleaning 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 Intake Manifold-To-Cylinder Head Gasket
    GM1277097Courtesy of GENERAL MOTORS CORP.
  1. Remove and discard the intake manifold-to-cylinder head gaskets (514).
    2. Fig 2: Intake Manifold
    GM1401989Courtesy of GENERAL MOTORS CORP.
  2. Remove the manifold absolute pressure (MAP) sensor (714). Refer to Intake Manifold Removal (RPO LY2/LY6/L92) or Intake Manifold Removal (RPO LH6/LMG/LY5/LC9/L76) .
  3. Remove the evaporative emission (EVAP) canister purge solenoid valve, EVAP tubes, and fuel rail with injectors. Refer to Fuel Rail and Injectors Removal .
  4. Remove the throttle body and gasket. Refer to Throttle Body Removal .
  5. Clean the intake manifold (500) in solvent.
    6. CAUTION: Refer to Safety Glasses and Compressed Air Caution .
  6. Dry the intake manifold with compressed air.
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