How do you bypass heater core on a 1994 oldsmobile achieva?

To bypass the heater core on a 1994 Oldsmobile Achieva, you need to locate the heater core hoses in the engine compartment. Disconnect the two hoses that connect to the heater core at the firewall. Then, connect a hose between the two engine coolant pipes, effectively creating a loop that bypasses the heater core. Make sure to secure the connections properly to prevent leaks.