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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Coolant: Service and Repair

There are various methods and types of equipment available to flush the cooling system. If using special equipment, follow the manufacturer's instructions for hook up and operation.

Removal of the thermostat is recommended before flushing the system.

After completion of the cooling system flush procedures, fill the cooling system, refer to Draining and Filling Cooling System and check for leaks, refer to Cooling System Leak Testing. Component Tests and General Diagnostics