Home Toyota Toyota Corolla Heater Core Replacement Instructions

Toyota Corolla Heater Core Replacement Instructions

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Drain the coolant from the cooling system, disconnect the heater hoses and discharge the air conditioner refrigerant.

Take out the driver air bag by loosening the screw covers on the steering wheel and the module-to-wheel Torx screws. Remove the steering wheel nut and press the wheel from the steering column. Remove the glove box and passenger air bag.

Detach the steering column. Remove the front door scuff plates, cowl side trims, front pillar garnishes, lower finish panel, hood lock control cable, lower insert, cluster finish panel, steering column cover and combination switch, heater-to-register duct, combination meter, column-to-dashboard fasteners, and steering column shaft pinch bolt.