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

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Heater Core: Service and Repair

Fig. 8 Heater Core Replacement:




1. Raise and support vehicle then drain cooling system into a suitable container.
2. Remove floor console and instrument panel as outlined in Instrument Panel Service section.
3. Replace blower motor in numbered sequence shown.
4. Reverse procedure to install.