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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 976 (Engine Controls - 6.6L (Lb7) (Introduction)) >> Repair Instructions >> Intake Air Heater (IAH) Replacement >> 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. Loosen the outlet duct clamp at the upper intake manifold cover.
  2. Remove the upper intake manifold cover from the outlet duct.
  3. Remove the upper intake manifold cover.
    4. Fig 1: View Of Upper Intake Manifold Cover, Outlet Duct & Clamp
    GM813243Courtesy of GENERAL MOTORS CORP.
  4. Remove the intake air heater (IAH) nut.
  5. Remove the IAH wire.
  6. Remove the IAH.
    7. Fig 2: Intake Air Heater
    GM798896Courtesy of GENERAL MOTORS CORP.
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