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Heater Core Replacement

Fig 1: Heater Core
GM2020251Courtesy of GENERAL MOTORS COMPANY
Callout Component Name

Preliminary Procedures

  1. Remove the heater inlet hose from the heater core tube. Refer to Heater Inlet Hose Replacement (LEA) , Heater Inlet Hose Replacement (LUK) , Heater Inlet Hose Replacement (LTG) .
  2. Remove the heater outlet hose from the heater core tube. Refer to Heater Outlet Hose Replacement (LUK) , Heater Outlet Hose Replacement (LEA) , Heater Outlet Hose Replacement (LTG) .
  3. Remove the left side console extension. Refer to Front Floor Console Extension Panel Replacement .
  4. Place a protective mat over the carpet.
1 Heater Core Tube Clamp (Qty:2)
Procedure 
Loosen the carpet in the area of the heater core.
2 Heater Core Tube Assembly
Procedure 
Before disconnecting the heater core tubes from the heater core, place a small drain pan under the heater core tubes to capture any coolant drainage.
3 Heater Core Tube Seal (Qty:2)
4 Heater Core Bracket Fastener
5 Heater Core
Procedure 
Pull out the heater core.