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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Coolant Temperature Sensor/Switch (For Computer): Service and Repair

On 6-258 engines, the coolant temperature switch is integral with the intake manifold heater (EFE) coolant temperature control switch. This switch is located at the rear of the intake manifold.
1. Disconnect wire connector.
2. Remove switch.
3. Reverse procedure to install. Tighten switch to 72 inch lbs.