HVAC System - Heating & Ventilation Ford Five Hundred I

GENERAL SPECIFICATIONS

GENERAL SPECIFICATIONS

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

Heating and Ventilation

The heating and ventilation system has the following features

1. Controls the temperature and, during A/C operation, reduces the relative humidity of the air inside the vehicle.
2. Delivers heated or cooled air to maintain the vehicle interior temperature and comfort level.
3. Cooling or heating can be adjusted to maintain the desired temperature.
4. Uses a reheat method to provide conditioned auto the passenger compartment.
5. All airflow from the blower motor passes through the A/C evaporator core.
6. Temperature blending is controlled by the temperature blend door(s), which regulate(s) the amount of air that flows through and around the heater core, where it is then mixed and distributed.

Heater Core

The heater core consists of fins and tubes arranged to extract heat from the engine coolant and transfer the heat to air passing through the plenum.

Auxiliary Coolant Flow Pump

Vehicles with auxiliary climate control are equipped with an auxiliary coolant flow pump. The auxiliary coolant flow pump is electrically driven and provides increased coolant flow to the front and rear heater cores. The auxiliary coolant flow pump is operational any time the ignition is in the RUN position.

Blower Motor

The blower motor pulls air from the air inlet and forces it into the heater core and evaporator core housing where it is mixed and distributed.

Heater Core and Evaporator Core Housing

The heater core and evaporator core housing directs airflow from the blower motor through the evaporator core and heater core. All airflow from the blower motor passes through the evaporator core. The airflow is then directed through or around the heater core by the temperature blend door(s). Vehicles equipped with dual-zone electronic automatic temperature control (EATC) use a partitioned heater core and evaporator core housing with 2 electric actuator-positioned temperature blend doors. This allows for separate temperatures to be selected for the driver and passenger sides of the passenger compartment. Manual systems use a single electric actuator-positioned temperature blend door to direct airflow through or around the heater core.

Refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION .

Scheme 226

Removal and Installation

1. Remove the RH cowl side trim panel.
2. Remove the RH lower instrument panel insulator.
3. Disconnect the blower motor electrical connector.
4. Remove the 3 blower motor screws.
5. Remove the blower motor.
6. Remove the blower motor wheel clip.
7. Remove the blower motor wheel.
8. To install, reverse the removal procedure.

Material

MATERIAL CHART

Scheme 227

Scheme 228

Scheme 229

Scheme 230

1. Remove the instrument panel. For additional information, refer to «INSTRUMENT PANEL AND CONSOLE»(/ford/five-hundred/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-and-console) .
2. Position the instrument panel with the passenger side supported as shown.
3. Disconnect the in-vehicle temperature sensor aspirator hose (if equipped).
4. Detach the wire harness from the air inlet duct.
5. Detach the wire harness from the blower motor housing.
6. Detach the wire harness from the heater core and evaporator core housing.
7. Remove the 2 floor duct screws.
8. Remove the floor duct.
9. Remove the 6 heater core and evaporator core housing bolts. To install, tighten to 9 Nm (80 lb-in).
10. Remove the heater core and evaporator core housing.
11. To install, reverse the removal procedure. Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to «CLIMATE CONTROL SYSTEM-GENERAL INFORMATION»(/ford/five-hundred/i-2004-2007/remont/automatic-hvac-system/#hvac-control-system-general-information) .

Scheme 231

Note. If a heater core leak is suspected, the heater core must be pressure leak tested before it is removed from the vehicle. For additional information, refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION .

Scheme 232

1. Remove the instrument panel. For additional information, refer to «INSTRUMENT PANEL AND CONSOLE»(/ford/five-hundred/i-2004-2007/remont/gauges-instrument-panels/#instrument-panel-and-console) .
2. Position the instrument panel with the passenger side supported as shown.
3. Remove the dash panel seal from the heater core tubes.
4. Remove the 2 heater core tube bracket screws and the heater core tube bracket.
5. Disconnect the evaporator discharge air temperature sensor electrical connector.
6. Disconnect the LH temperature blend door actuator electrical connector.
7. Remove the 3 LH temperature blend door actuator screws.
8. Remove the LH temperature blend door actuator.
9. Remove the 3 heater core cover screws.
10. Remove the heater core cover.
11. Remove the heater core.
12. To install, reverse the removal procedure.

Scheme 233

1. Remove the air cleaner and air cleaner outlet tube. For additional information, refer to «INTAKE AIR DISTRIBUTION & FILTERING»(/ford/five-hundred/i-2004-2007/remont/removal-installation/#intake-air-distribution-system-filtering-system) .
2. Using suitable tools, clamp off the heater hoses at the auxiliary coolant flow pump.
3. Release the 2 hose clamps and disconnect the hoses from the auxiliary coolant flow pump.
4. Remove the LH auxiliary coolant flow pump bolt. To install, tighten to 7 Nm (62 lb-in).
5. Completely loosen the RH auxiliary coolant flow pump bolt. To install, tighten to 7 Nm (62 lb-in).
6. Disconnect the auxiliary coolant flow pump electrical connector.
7. Remove the auxiliary coolant flow pump.
8. To install, reverse the removal procedure. Clean and lubricate the coolant hoses with plain water only, if needed.
9. Fill the engine cooling system. For additional information, refer to «ENGINE COOLING»(/ford/five-hundred/i-2004-2007/remont/cooling-system-mechanical/#engine-cooling-system) .

See also:
• CLIMATE CONTROL SYSTEM-GENERAL INFORMATION
• INSTRUMENT PANEL AND CONSOLE
• INTAKE AIR DISTRIBUTION & FILTERING
• ENGINE COOLING