Heater Core Replacement

Fig 1: Heater Core

Courtesy of GENERAL MOTORS COMPANY

Call out	Component Name
Preliminary Procedure Heater Core Tube Replacement CAUTION: Refer to HVAC Module Drain Tube Caution .
1	Heater Core Procedure Reposition the heater core outward from the heater case to ease in removal. Mark the location of the center foam seal from the old heater core to the new heater core. Press on foam seals to activate adhesive. Keep the heater core horizontal and straight when inserting into the HVAC module in order to prevent foam seal damage. Push heater core until the foam seal around the heater core tank is inserted into the HVAC module and the heater core is fully seated.

Call out

Component Name

CAUTION:

Heater Core

Procedure

Reposition the heater core outward from the heater case to ease in removal.
Mark the location of the center foam seal from the old heater core to the new heater core.
Press on foam seals to activate adhesive.
Keep the heater core horizontal and straight when inserting into the HVAC module in order to prevent foam seal damage.
Push heater core until the foam seal around the heater core tank is inserted into the HVAC module and the heater core is fully seated.