Removal Procedure

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

Remove the auxiliary HVAC module (4) from the vehicle. Refer to HVAC MODULE REPLACEMENT - AUXILIARY (SUBURBAN/YUKON XL) or HVAC MODULE REPLACEMENT - AUXILIARY (TAHOE/YUKON)

Fig 1: Removing Auxiliary HVAC Module From Vehicle
Courtesy of GENERAL MOTORS CORP.
Remove the air temperature actuator (1) from the auxiliary HVAC module.

Fig 2: Removing Air Temperature Actuator From Auxiliary HVAC Module
Courtesy of GENERAL MOTORS CORP.
Remove the heater core cover (1) from the auxiliary HVAC module.

Fig 3: Removing Heater Core Cover From Auxiliary HVAC Module
Courtesy of GENERAL MOTORS CORP.
Remove the heater core (1) from the auxiliary HVAC module.

Fig 4: Removing Heater Core From Auxiliary HVAC Module
Courtesy of GENERAL MOTORS CORP.