Remove heater/evaporator case. See HEATER/EVAPORATOR CASE. Disconnect vacuum hose harness from vacuum motor. Remove foam seals from evaporator core tubes. Remove blend door actuator motor.
Disengage spring from heater core cover and remove. Gently depress locking ramp and remove lever from secondary A/C temperature control door shaft. See Fig. 3. Rotate primary A/C temperature control door shaft downward. Remove lever from pin.
Remove 3 heater core cover screws and heater core cover. Remove cover seal. Remove heater core and heater core seal from heater/evaporator case. To install, reverse removal procedure.
Disconnect negative battery cable. Drain coolant from radiator. Gently pull instrument panel away from right side of dash panel. See INSTRUMENT PANEL.
Discharge A/C system, using approved refrigerant recovery/recycling equipment. Disconnect heater hoses from heater core. Plug heater core tubes or drain coolant by blowing coolant from heater core using low pressure compressed air. Disconnect vacuum supply hose from inside engine compartment.
Disconnect A/C lines from evaporator core. Plug A/C lines and evaporator core tubes. Remove instrument panel assembly brace to evaporator case bracket screw. Remove assembly brace.
Remove floor register and rear floor duct from bottom of heater/evaporator case. Remove nuts securing heater/evaporator case to firewall. Remove 2 screws securing support brackets to cowl top panel. Carefully pull heater/evaporator case away from firewall. Remove heater/evaporator case.
To install, reverse removal procedure. Evacuate and charge A/C system. Refill cooling system.