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Where is the heater control valve on a mustang?

The heater control valve on a Mustang is typically located on the passenger side of the engine bay, near the firewall. It is a small, cylindrical-shaped valve with two hoses connected to it. One hose is connected to the engine's coolant system, and the other is connected to the heater core. The valve opens and closes to regulate the flow of coolant to the heater core, which in turn controls the amount of heat that is blown into the cabin of the car.