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(2) Connect the temperature control cable housing flag retainer to the receptacle on the back of the (3) Plug in the vacuum harness connector and install the two stamped nuts to secure the connector (4) Plug the wire harness connector into the back of the heater-A/C control. (5) Reinstall the wire harness retainer to the side of the heater-A/C control. (6) Position the heater-A/C control in the instru- ment panel and secure it with four screws. Tighten (7) Reinstall the cluster bezel to the instrument panel. Refer to Cluster Bezel in the Removal and (8) Connect the battery negative cable. perature Control Cable in the Adjustments section of HEATER-A/C HOUSING The heater-A/C housing assembly must be removed from the vehicle and disassembled for service access WARNING: REVIEW THE WARNINGS AND CAU- WARNING: ON VEHICLES EQUIPPED WITH AIR- REFER TO GROUP 8M - PASSIVE RESTRAINT SYSTEMS BEFORE ATTEMPTING ANY WHEEL, STEERING COLUMN, OR INSTRUMENT PANEL COMPONENT DIAGNOSIS OR REMOVAL (1) Disconnect and isolate the battery negative cable. (2) Remove the instrument panel from the vehicle. Refer to Instrument Panel Assembly in the Removal (3) Recover the refrigerant from the refrigerant system. See Refrigerant Recovery in the Service Pro- (4) Remove the front expansion valve from the evaporator tube mounting flange. See Expansion (5) Drain the engine cooling system. Refer to Group 7 - Cooling System for the procedures. (6) Disconnect the heater hoses from the heater core tubes. Refer to Group 7 - Cooling System for the (7) Remove the four nuts from the heater-A/C housing mounting studs on the engine compartment (8) Disengage the front floor panel transmission tunnel duct from the adapter on the heater-A/C hous- (9) Remove the nut that secures the heater-A/C housing mounting brace to the stud on the passenger (10) Pull the heater-A/C housing rearward far enough for the mounting studs and the evaporator (11) Remove the heater-A/C housing from the vehi- cle. DISASSEMBLY (1) Place the heater-A/C housing on a work bench, with the heater-A/C housing cover facing down. (2) Remove the two screws that secure the heater- A/C housing cover to the top of the blower motor (3) If the vehicle is so equipped, unplug the two vacuum harness connectors from the recirculation air (4) Unplug the vacuum harness connector from the panel-defrost door actuator. (5) Remove the four screws that secure the floor duct to the bottom of the heater-A/C housing and (6) Remove the two screws that secure the heater- A/C housing cover to the lower housing near the floor (7) Turn the heater-A/C housing over on the work bench, with the heater-A/C housing cover facing up. (8) Disengage the vacuum harness retainer from the hole near the left end of the heater-A/C housing (9) Remove the vacuum harness from the molded clips on the heater-A/C housing cover (Fig. 63). (10) Remove the thirteen screws that secure the perimeter of the housing cover to the heater-A/C (11) Remove the nut that secures the blend-air door lever to the blend-air door pivot shaft and 24 - 54 HEATING AND AIR CONDITIONING DN REMOVAL AND INSTALLATION (Continued) |