Can you By Pass The Heater Core if it leaks?

Yes, you can bypass a leaking heater core by connecting the inlet and outlet hoses together, effectively creating a loop that prevents coolant from flowing through the heater core. This will stop coolant loss and prevent potential overheating, but it will also disable your vehicle's heating system. It's a temporary fix, and it's advisable to replace the heater core as soon as possible for proper vehicle function.