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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Distributor Thermal Control Valve


Distributor Thermal Control Valve:






COLD--Engine Coolant Temperature Below 61° F
Vacuum should pass through the valve.

WARM--Engine Coolant Temperature Above 76° F
Passage of vacuum should be completely restricted.

NOTE: Refer to the number stamped on the base of the switch or valve for calibrated switching or activation temperatures.