Файл: 92FWD_24.pdf

Fig. 2 Temperature Control CableÐTypical

(a) Insert a 4mm (3/16 inch) diameter drill bit (Fig. 1-Inset) into the door crank access hole. Then rotate the clip from the cable.

To install, reverse the preceding operation.

To adjust temperature cable: Position the TEMP lever on the control to the cool side of its travel. Allowing the self-adjusting clip to slide on the cable, rotate the blend-air door crank counterclockwise by hand until it stops.

BLOWER RESISTOR BLOCKÐREMOVE AND INSTALL

WARNING: STAY CLEAR OF THE BLOWER MOTOR AND RESISTOR BLOCK (HOT) DURING THE FOLLOWING PROCEDURES.

CAUTION: Do not operate the blower motor with the resistor block removed from the heater-A/C housing. Air must move over the hot coils.

AJ AND AG BODY

(1)Remove the instrument panel glove box and door assembly. Refer to Group 8E Instrument Panel.

(2)Remove security and lamp outage modules.

(3)Locate the blower resistor block (Fig. 3). It is above and to the front of the glove box opening on the dash panel. Remove the wire connector.

(4)Remove the two attaching screws at the resistor block.

(5)Carefully pull the resistor block straight out from the cowl plenum opening and remove the resistor block from the vehicle.

To install, reverse the preceding operation. The coils on the Resistor Block should not be contacting one another. Before installation, gently separate the coils (with fingers only) if one coil is contacting another.

AA, AP, AY, AND AC BODY

(1) Raise the hood and remove the windshield wiper arm assemblies.

Fig. 3 Blower Resistor Block LocationÐAJ and AG

Body

(2)Remove five cowl-plenum grille attaching screws and carefully lift the grille from the vehicle.

(3)(AA and AP): Locate and remove four air intake shield attaching screws and lift the shield from the vehicle.

(4)(AC and AY): Remove two resistor block terminal cover screws and remove cover.

(5)Disconnect the wire connector from the resistor block located behind the windshield washer reservoir (Fig. 4).

Fig. 4 Blower Resistor Block LocationÐAA, AP, AY

and AC Body

(6) Remove two blower resistor block attaching screws. Then carefully pull the resistor block forward until the coils clear the plenum and lift it from the vehicle.

To install, reverse the preceding operation. The coils on the Resistor Block should not be contacting one another. Before installation, gently separate the coils (with fingers only) if one coil is contacting another.

VACUUM ACTUATORÐFRESH/RECIRC DOOR

This actuator is located on the passenger side of the heater-A/C housing.

REMOVAL AND INSTALLATION

(1)AA, AC or AY Body: Remove silencer cover under the instrument panel (below glove box).

(2)Remove glove box assembly. Refer to Group 8E, Instrument Panel.

(3)Disconnect vacuum lines.

(4)Locate and remove the two vacuum actuator attaching screws.

(5)Disengage the actuator arm linkage from the door pivot and remove the vacuum actuator (Fig. 5) from vehicle.

Fig. 5 Recirculating Air Door Vacuum

ActuatorÐTypical

To install, reverse the preceding operation.

AIR DISTRIBUTION DUCT

REMOVAL AND INSTALLATIONÐAA BODY

On AA Body the instrument panel must be rolled down to service duct. Refer to Group 8E, Instrument Panel.

REMOVAL AND INSTALLATIONÐAC, AP, AY BODY

(1)Remove lower instrument panel module. Refer to Group 8E, Instrument Panel.

(2)Remove distribution duct attaching screws from under the front edge of the instrument panel (Fig. 6).

(3)Slide duct downward and remove from vehicle. To install, reverse the preceding operation.

DEFROSTER DUCT ADAPTER

On AA body, the instrument panel must be rolled down to service duct. Refer to Group 8E, Instrument Panel.

REMOVAL AND INSTALLATIONÐAC, AP, AY BODY

(1) Remove air distribution duct.

Fig. 6 Air Distribution DuctsÐTypical

(2) Separate the defroster adapter from the heater- A/C unit and pull the adapter downward and out from under the instrument panel.

To install, reverse the preceding operation.

DEFROSTER DUCT

On AA, AG, and AJ Body, the instrument panel must be rolled down to service duct. Refer to Group 8E, Instrument Panel.

REMOVAL AND INSTALLATIONÐAC, AP, AY BODY

(1)Remove the air distribution duct.

(2)Remove the defroster duct adapter.

(3)Remove the instrument panel top cover. Refer to Group 8E, Instrument Panel.

(4)Locate and remove defroster duct attaching screws at the ends of each outlet (Fig. 7).

(5)Allow the defroster duct to drop downward and remove it from the vehicle.

To install, reverse the preceding operation.

HEATER HOSES

REMOVAL AND INSTALLATION

Review Cooling System Precautions before proceeding with this operation.

(1)Drain engine cooling system. Refer to Group 7, Cooling System.

(2)Loosen clamps at each end of hose to be removed (Figs. 8 or 9).

(3)Carefully rotate hose back and forth while tugging slightly away from connector nipple.

Fig. 7 Removing or Installing Defroster

DuctÐTypical

Fig. 8 Heater Hose RoutingÐ2.2 L, 2.5 L

EnginesÐTypical

CAUTION: When removing hoses from heater core inlet or outlet nipples DO NOT exert excess pressure. The heater core may become damaged and leak engine coolant into heater-A/C unit.

To install, reverse the preceding operation.

Fig. 9 Heater Hose RoutingÐ3.0 L EngineÐTypical

AMBIENT TEMPERATURE SENSOR

SWITCHÐVARIABLE DISPLACEMENT

COMPRESSOR

REMOVAL AND INSTALLATION

The Ambient Temperature Sensor Switch is located in front of the A/C condenser and behind the vehicle grill (Fig. 10). Grill removal is not necessary for Sensor replacement.

Fig. 10 Ambient Temperature Sensor

SwitchÐTypical Mounting

(1)Remove the one attaching screw.

(2)Remove the sensor/bracket assembly from the vehicle.

To install, reverse the preceding operation.

VACUUM ACTUATORSÐMODE DOORS

The Vacuum Actuators for the Mode Doors are located on the drivers side of heater/AC housing above the accelerator pedal.

REMOVAL

(1) Remove the instrument panel cover under the steering column. Refer to Group 8E, Instrument Panel.

Heat/Defrost Actuator:

Ä

Remove two screws from bracket. Lift actuator upward and pull out (Fig. 11).

HEATING AND AIR CONDITIONING 24 - 49

Mode Door Actuator:

Insert the actuator shaft through the hole in the housing and heat/defrost door. Attach through mounting hole in the mode door. Install two screws in bracket.

Install the instrument panel cover under the steering column.

AIR DISTRIBUTION DUCT

REMOVAL AND INSTALLATION

(1)Instrument panel assembly must be removed. Refer to Group 8E, Instrument Panel.

(2)After instrument panel has been removed, separate the defroster/demister ducts from the air distribution duct.

(3)Remove the air distribution duct-to-instrument panel mounting screws (Fig. 13).

Fig. 11 Removing or Installing Heat/Defrost Vacuum Actuator Assembly

Mode Door Actuator:

Remove two screws from bracket (Fig. 12). Rotate actuator counter-clockwise to unhook from door and pull to remove.

Fig. 12 Mode Door Vacuum Actuators

INSTALLATION

Heat/Defrost Actuator:

Install actuator link through housing and insert in heat defrost door slot. Push down to hook link to door. Locate the bracket to the housing and install two screws.

Fig. 13 Air Distribution Duct

DEFROSTER DUCTS/DEMISTER DUCTS AND HOSES

REMOVAL AND INSTALLATION

(1)Instrument panel assembly must be removed. Refer to Group 8E, Instrument Panel.

(2)After instrument panel has been removed, separate the defroster/demister ducts from the air distribution duct.

(3)Remove the demister tubes and hoses (Fig. 14).

CONDENSER FAN CONTROL SWITCHÐVARIABLE DISPLACEMENT COMPRESSOR SYSTEM

The Fan Control Switch is located on the plumbing discharge line at the A/C compressor (Fig. 15).

CAUTION: Refrigerant discharge is not necessary when removing the Condenser Fan Control Switch. However, a small amount of refrigerant will vent from the switch port. Review the refrigerant handling section of Safety Precautions and Warnings in the General Information section of this Group.

Fig. 14 Defroster Ducts/Demister Ducts and Hoses

Fig. 15 Condenser Fan Control Switch

REMOVAL AND INSTALLATION

(1)Disconnect wire connector from condenser fan control switch.

(2)Loosen and quickly rotate the switch counterclockwise and separate from the high pressure line switch port.

To install, reverse the preceding operation.

FIN-SENSING CYCLING CLUTCH SWITCH

REMOVAL AND INSTALLATION

(1) Remove the cover/housing from the heater-A/C blower motor. Refer to Blower Motor removal and installation. Remove the cover only. Blower motor or blower motor wheel removal is not necessary.

Fig. 16 Remove or Install Wire Harness Grommet

(3) Work through the air inlet opening (to the left of the blower motor wheel). Pull the fin-sensing cycling switch from the A/C evaporator (Fig. 17). The metal probe on the switch is pushed into the evaporator approximately three inches.

Fig. 17 Remove or Install Fin-sensing Cycling Clutch Switch

To install, reverse the preceding operation. The switch probe should not be installed in the original location (hole). Insert the probe in the evaporator coil approximately 5 mm (3 to 4 fins) to the right or left of the position it was removed. This will insure correct temperature sensing and system performance. Excessive force should not be required for probe insertion. Care should be taken not to damage the A/C evaporator coil or the switch probe.