I attached the procedure for you for the replacement of the heater core.
https://www.2carpros.com/articles/replace-heater-core
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HVAC MODULE ASSEMBLY REPLACEMENT
TOOLS REQUIRED
- J 43181 Heater Line Quick Connect Release Tool
- J 39400-A Halogen Leak Detector
REMOVAL PROCEDURE
1. Drain the engine coolant. Refer to Draining and Filling Cooling System (Body Vin Code 6) Draining and Filling Cooling System (Body Vin Code 3) in Cooling System.
2. Recover the refrigerant.
3. Remove the I/P carrier. See: Dashboard / Instrument Panel > Removal and Replacement > Instrument Panel (IP) - Carrier Replacement
4. Reposition the heater hose clamps using J 43181.
5. Disconnect the heater hoses from the heater core.
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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.
INSTALLATION PROCEDURE
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1. If replacing the HVAC module assembly (8), transfer the components from the old HVAC module assembly as necessary.
2. Install the HVAC module assembly (8).
3. Connect all of the electrical connectors to the HVAC module assembly.
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4. Connect the heater hoses to the heater core.
5. Connect the evaporator tube (4) to the evaporator (1).
6. Install the accumulator (6) to the evaporator (1).
7. Tighten the accumulator retaining nut.
NOTE: Refer to Fastener Notice in Service Precautions.
See: Heating and Air Conditioning > Vehicle Damage Warnings > Fastener Notice
Tighten
Tighten the nut to 4.5 N.m (40 lb in).
8. Install the I/P carrier.
9. Evacuate and recharge the A/C system.
10. Leak test the fittings of the components using the J 39400.
11. Refill the engine coolant. Refer to Draining and Filling Cooling System (Body Vin Code 6) Draining and Filling Cooling System (Body Vin Code 3) in Cooling System.
HEATER CORE REPLACEMENT
REMOVAL PROCEDURE
1. Remove the HVAC module assembly. See: Housing Assembly HVAC > Service and Repair
2. Remove the heater core access cover screws.
3. Remove the heater core access cover.
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4. Remove the heater core (2) from the HVAC module assembly (1).
INSTALLATION PROCEDURE
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1. Install the heater core (2) to the HVAC module assembly (1).
2. Install the heater core access cover.
3. Install the heater core access cover screws.
Tighten the screws to 1.9 N.m (17 lb in).
NOTE: Refer to Fastener Notice in Service Precautions.
4. Install the HVAC module assembly.
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Friday, February 19th, 2021 AT 11:33 AM