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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Without Air Conditioning





Malibu & Monte Carlo

1. Disconnect battery ground cable and drain cooling system.
2. Disconnect heater hoses from heater core. Plug core outlets to prevent coolant spillage.
3. Disconnect wire connectors, then remove front module cover attaching screws and cover.
4. Remove heater core from module, Fig. 21.
5. Reverse procedure to install.