Ford Mustang Service Manual: Air Distribution
Air Distribution
NOTE: The air distribution system of this vehicle cannot be equipped with a cabin air filter.
There are two sources of air available to the air distribution system:
- outside air
- recirculated air
Recirculated air is only used during MAX A/C.
Air distribution within the vehicle is determined by the function selector switch position. Airflow control doors are used to direct airflow within the air plenum chamber. Vacuum control motors (18A318) are used to position these airflow control doors. Refer to Section for a description and operation of each of the system functions.
The air distribution system is designed to provide airflow from the defrost nozzle when no vacuum is applied to any of the vacuum control motors. This is done to prevent a situation where defrost cannot be obtained due to a system vacuum leak.
Air enters the passenger compartment from the:
- instrument panel A/C register (19893).
- heater outlet floor duct (18C433).
- windshield defroster hose nozzle (18490).
- side window demisters.
Passenger compartment air is exhausted from the vehicle through open windows or body air vents.
Instrument Panel Registers
There are A/C registers on the left and right sides of the instrument panel and in the center instrument panel finish panel.
The LH and RH A/C registers are only serviceable as assemblies.
The center A/C registers are not serviceable as assemblies. The registers are installed with the instrument panel center finish panel assembly.
Component Locations
Air Distribution and Filtering
Torque Specifications ...Register - LH
Air Distribution NOTE: The air distribution system of this vehicle cannot be equipped with a cabin air filter. There are two sources of air available to the air distribution system: outside air r ...Other materials:
Removal
Removal
CAUTION: Electronic modules are sensitive to static electrical
charges. If exposed to
these charges, damage may result.
1. Remove the driver air bag module. For additional information,
refer to Section.
2. Remove the passenger air bag mo ...
Removal
Removal
1. Remove the upper intake manifold. For additional information, refer to
Upper Intake Manifold in
this section.
2. Partially drain the cooling system. For additional information, refer to
Section.
3. Relieve the fuel system pressure. For add ...
Functionality
Functionality
With the ignition switch in the RUN position, voltage is applied
through the warning indicator I circuit
904 (LG/RD) to the voltage regulator. This turns the regulator on,
allowing current to flow from battery
sense A circuit 36 (YE/W ...