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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Engine Coolant Flushing

ENGINE COOLANT FLUSHING
Engine and Radiator

Warning: Do not open the cooling system while it is hot or while the engine is running.

1. Drain the cooling system.
2. Remove the thermostat.
3. Install the thermostat housing without the thermostat.
4. Flush the engine and radiator.
5. Install the thermostat.
6. Back flush the heater core if necessary.
7. Fill the cooling system.

Heater Core





1. Partially drain the cooling system.

Warning: Do not open the cooling system while it is hot or while the engine is running.

2. Back flush the heater core.
3. Fill the cooling system.