Where is the heater control valve on 1996 e350?

On a 1996 Ford E-350, the heater control valve is typically located on the engine compartment's firewall, near the passenger side. It connects the heater hoses from the engine to the heater core. To access it, you may need to remove any obstructions, such as the air intake or other components, depending on the specific configuration of your vehicle. Always consult the vehicle's service manual for precise location and removal instructions.