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    Can I Block (Put a Solenoid) in the line that goes to the heater core?

    I did an EGR delete in my LBZ, normally the EGR cooling line then goes to the Heater core and eventually suck back into the engine. Here is my question: I want to install an electric solenoid to only allow coolant flow to the heater core on demand. If I do this, The outlet (suction) line that...