Home Toyota Toyota Corolla Heater Core Replacement Instructions

Toyota Corolla Heater Core Replacement Instructions

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Disassemble and remove the dashboard. The lower left and right side panels, shifting hole knob or bezel rear console box, center lower cluster finish panel, stereo opening cover, lower center finish panel, air conditioning panel, center cluster finish panel, radio, and electrical connectors.

Disconnect the evaporator housing. Remove the heater-to-register duct, lower defroster nozzle, braces, reinforcement. Disconnect the cruise control actuator connector and set bolts and the refrigerant line clamps.

Remove the tube and drain hose grommets, air conditioning amplifier and the evaporator housing.

Remove the rear heater ducts by pulling back the carpet. Remove the heater housing by disconnecting the wiring harness, housing-to-chassis nuts and the heater housing.