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Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 Oldsmobile Bravada, 2003 GMC Envoy XL, 2003 GMC Envoy, 2003 Chevrolet TrailBlazer, and 2002 Oldsmobile Bravada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the engine coolant. Refer to DRAINING AND FILLING COOLING SYSTEM (BODY VIN CODE 6) or DRAINING AND FILLING COOLING SYSTEM (BODY VIN CODE 3) in Engine Cooling.
  2. Recover the refrigerant. Refer to REFRIGERANT RECOVERY AND RECHARGING .
  3. Remove the I/P carrier. Refer to INSTRUMENT PANEL (I/P) CARRIER REPLACEMENT in Instrument Panel, Gages and Console.
  4. Reposition the heater hose clamps using J 43181.
  5. Disconnect the heater hoses from the heater core.
    Fig 1: Removing HVAC Module Assembly
    G01596583Courtesy of GENERAL MOTORS CORP.
  6. Remove the retaining nut (3) from the accumulator (6) at the evaporator (1).
  7. Disconnect the accumulator (6) from the evaporator (1).
  8. Disconnect the evaporator tube (4) from the evaporator (1).
  9. Disconnect all of the electrical connectors to the HVAC module assembly.
  10. Remove the HVAC module assembly.
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