Toyota Corolla Heater Core Replacement Instructions – Replacing your Toyota Corolla’s heater core is best left for an expert if at all possible. Changing the core itself isn’t hard, but getting to it is. You must remove the air bags, steering column, dashboard and evaporator in order to reach the heater.
Tools Used: Tools, Replacement heater core, Wrench, Screwdriver, Torx socket wrench, Steering wheel puller, Liquid line tool, O-rings, Engine coolant
Replace Heater Core
Remove the Old Core
Unplug the Corolla’s the negative battery cable and wait 90 seconds for the air bags to lose energy.