Operation CHARM: Car repair manuals for everyone.

Temperature Valve

The Temperature Valve is controlled by the temperature selector in the Heater and A/C Control Assembly. With the selector in COLD, the valve is in the COLD position. This prevents air from blowing across the Heater Core. With the selector in any position but COLD, the Temperature Valve is open. According to the selector position, some or all of the air blows across the Heater Core.