Air Distribution & Filtering: Other Ford Thunderbird XI

Air Distribution And Filtering

Note. The air distribution system of this vehicle is factory equipped with a cabin air filter.

There are two sources of air available to the air distribution system

1. outside air
2. recirculated air

Air distribution within the vehicle is controlled by the dual electronic automatic temperature control (DATC) system in the AUTOMATIC mode, but it can be overridden by the driver if desired. Airflow control doors are used to direct airflow within the evaporator and blower assembly (19B555) and within the plenum chamber (19740). Electrically powered actuators (19E616) are used to position the airflow control doors. For additional information, refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION for description and operation of each of the system functions.

Recirculated air can be selected by pushing the recirculating air button on the dual automatic temperature control panel. It may also be commanded by the DATC during AUTOMATIC and OFF modes. If the recirculating mode is selected in floor mode, the DATC module will automatically discontinue the recirculating air mode in floor mode, to reduce fogging of the windows.

Air enters the passenger compartment from the

1. instrument panel A/C registers (19893).
2. heater outlet floor duct.
3. windshield defroster hose nozzle (18490).
4. side window demisters.

Passenger compartment air is exhausted from the vehicle through open windows or luggage compartment air vents.

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Refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION .

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1. Remove the LH and RH cowl side trim pieces.
2. Remove the windshield wiper pivot arms. Remove the nut cover. Remove the nut. Remove the pivot arm.
3. Position the cowl vent screen aside. Remove the pin-type retainers. Disengage the retaining clips.
4. Push on the RH corner of the filter to release the clip. Release the LH clip and remove the cabin air filter.
5. To install, reverse the removal procedure. When installing, align the windshield wiper pivot arms with the orange alignment marks on the windshield.

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1. Remove the cowl vent screen. For additional information, refer to «FRONT END BODY PANELS»(ref-204605) .
2. Push on the RH corner of the filter to release the clip. Release the LH clip and remove the cabin air filter.
3. Remove the seven bolts and remove the cross-vehicle support.
4. Remove the bolts.
5. Remove the cabin air filter housing by lifting the outboard side then removing the housing.
6. Remove the three bolts and remove the plenum panel.
7. To install, reverse the removal procedure.