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Disconnect the negative battery cable, then drain the engine cooling system to a level below heater core.
Disconnect and plug the heater hoses at the core tubes. Plugging the hoses will help prevent excessive coolant leakage.
- Remove the module's rubber seal and screen. If necessary, disconnect the washer nozzle from the cowl.
- If necessary, remove the right windshield wiper arm.
- As applicable, remove or disengage, the diagnostic connector, high blower relay, thermostatic switch, ground strap and/or electrical connectors from the heater core module cover.
- Loosen the retainers and remove the module's top cover. The cover is sealed to the module and this seal must be broken before the cover can be removed. Be absolutely sure that all cover fasteners are removed before attempting to break the seal or cover damage will result. Take your time and be careful not to force and crack or otherwise damage the cover.
- With the top cover removed, loosen or unclip the core retainer, then carefully lift the core from the vehicle.
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