Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

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Heater Core: Service and Repair



HEATER CORE REPLACEMENT












Remove or Disconnect

1. Negative battery cable

2. Wires at:
- Heater, relay connection.
- Resistor, heater blower.
- Heater, blower switch connection.
- Heater, ground connection.
- Forward courtesy lamp socket (if equipped).

3. Windshield washer fluid container.

4. Heater core inlet and outlet hoses.

5. Heater core grommets.

6. Heater case cover.

7. Heater core retainer.

8. Heater core.

Install or Connect

1. Heater core.

2. Heater core retainer.

3. Heater case cover.

4. Heater core grommets.

5. Heater core inlet and outlet hoses.

6. Windshield washer fluid container.

7. Wires at:
- Heater, relay connection.
- Resistor, heater blower.
- Heater, blower switch connection.
- Heater, ground connection.
- Forward courtesy lamp socket (if equipped).

8. Negative battery cable.

9. Fill cooling system. Service and Repair