OEM 2004 Toyota Solara Heater Core

2004 Toyota Solara Parts Questions & Experts Answers

• Q: How to Service and Repair the Heater Core on 2004 Toyota Solara?

  A: The first step for heater core servicing requires the discharge of refrigerant through Special Service Tool: 07110-58060 (07117-58080, 07117-58090, 07117-78050, 07117-88060, 07117-88070, 07117-88080). Access Hose No.1 of the cooler refrigerant suction by installing Tool: 09870-00015 into the piping clamp and unlock the clamp followed by hose removal without screwdrivers. Close all open fittings before you remove the 2 O-rings from the cooler refrigerant suction hose No.1 and secure them with vinyl tape on the openings. Disconnect pipe A of the cooler refrigerant liquid by utilizing Special Service Tool: 09870-00025 according to the same procedure used for disconnecting cooler refrigerant suction hose No.1. When working on the 2AZ-FE engine type you must split heater water outlet hose A from heater water inlet hose A but should avoid using strong force while maintaining leak protection readiness. The procedure for disconnecting heater outlet / inlet water hoses of 3MZ-FE engines mirrors the previous steps. Return to the passenger side of the driver compartment and remove the instrument panel safety pad sub-assembly with passenger air bag assembly before you detach air duct rear No.1 and air duct rear No.2 by folding back the floor carpet then removing the necessary screws and other fasteners. Take out all bolts, earth wires and connector holder from instrument panel brace sub-assembly No.1 to proceed with removing the instrument finish panel retainer lower and instrument panel brace sub-assembly No.2. Take off clips that retain foot duct heater units No.3 and No.1 to gain access to the instrument panel junction block assembly then remove the central part of the instrument panel bracket sub-assembly. Remove the instrument panel reinforcement assembly after disconnecting wire harness clamps and earth wires and removing caps and bolts. The steering column assembly requires separate disconnect procedures by releasing wire harness clamps and connectors. The last step involves taking apart the stereo component amplifier assembly and the ECM for both 2AZ-FE and 3MZ-FE engine types along with the blower assembly through connector and clamp removal and the defroster nozzle assembly lower by releasing fitting claws.