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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 HVAC module assembly. Refer to HVAC Module Assembly Replacement .
  2. Remove the screws from the heater core cover.
  3. Remove the heater core cover (1) from the HVAC module assembly (2).
    Fig 1: View Of Heater Core Cover & HVAC Module Assembly
    GM826718Courtesy of GENERAL MOTORS CORP.
  4. Remove the heater core cowl gasket (1) from the heater core (2).
    Fig 2: Heater Core Cowl Gasket (Visteon)
    GM826720Courtesy of GENERAL MOTORS CORP.
    5. Fig 3: Removing Heater Core (Visteon)
    GM826688Courtesy of GENERAL MOTORS CORP.
  5. Remove the heater core (1) from the HVAC module assembly (2).
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