HVAC System Ford Crown Victoria II

Identifying General Specifications

Identifying General Specifications

TORQUE SPECIFICATIONS

TORQUE SPECIFICATIONS

Air Conditioning

The A/C refrigerant system is a clutch cycling orifice tube type. The system components include

1. A/C compressor (19703)
2. A/C clutch (2884)
3. A/C condenser core (19712)
4. A/C evaporator core (19860)
5. A/C suction accumulator (19C836)
6. connecting refrigerant lines

The refrigeration system operation is controlled by the

1. A/C evaporator core orifice (19D990)
2. evaporator air discharge temperature sensor (19C734)
3. A/C compressor pressure relief valve (19D644)
4. A/C pressure sensor (19D594)
5. low-charge protection switch (19E561)

The refrigerant system incorporates an A/C compressor controlled by an evaporator air discharge temperature sensor.

The evaporator air discharge temperature sensor senses the A/C evaporator core temperature to control A/C compressor operation. For additional information concerning the evaporator air discharge temperature sensor, refer to CONTROL COMPONENTS .

An A/C compressor pressure relief valve is installed in the A/C manifold and tube (19D734) to protect the refrigerant system against excessively high refrigerant pressures.

The A/C evaporator core orifice is installed in the condenser-to-evaporator tube (19835) to meter the liquid refrigerant into the A/C evaporator core.

A/C Compressor and Clutch Assembly

Note. Internal A/C compressor components are not serviced separately. The SC115 A/C compressor is serviced only as an assembly. The clutch plate, clutch pulley and bearing (19D784), and clutch field coil (19D798) are serviceable.

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

The SC115 A/C compressor has the following characteristics

1. Tangential mount, three-lug design.
2. The single manifold block of the compressor manifold and tube assembly fits to the suction and discharge ports. Two O-ring seals are used for sealing.
3. An eccentric bushing is driven by the shaft of the A/C compressor.
4. An orbiting scroll driven by the eccentric bushing compresses the refrigerant gas against the walls of the fixed scroll.
5. A single reed-type discharge valve mounted on the back of the fixed scroll. There are no suction valves.
6. A non-serviceable shaft seal fully supported on both sides by bearings.
7. The A/C compressor uses PAG oil or equivalent. This oil contains special additives required for the A/C compressor.
8. The A/C compressor oil from vehicles equipped with an SC115 A/C compressor may have some slightly dark-colored streaks while maintaining normal oil viscosity. This is normal for this A/C compressor because of break-in wear of the scroll seals that can discolor the oil.
9. Use standard oil matching procedures when installing new compressors.

Scheme 1

When battery voltage is applied to the A/C compressor clutch field coil, the clutch plate and hub assembly is drawn toward the A/C clutch pulley. The magnetic force locks the clutch plate and hub assembly and the A/C clutch pulley together as one unit, causing the compressor shaft to rotate. When battery voltage is removed from the A/C compressor clutch field coil, springs in the clutch plate and hub assembly move the clutch plate away from the A/C clutch pulley.

A/C Compressor Pressure Relief Valve

An A/C compressor pressure relief valve is incorporated in the compressor A/C manifold and tube to

1. relieve unusually high refrigerant system discharge pressure buildups. For specifications regarding operating pressure(s), refer to «CLIMATE CONTROL SYSTEM-GENERAL INFORMATION»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information) .
2. prevent damage to the A/C compressor and other system components.
3. avoid total refrigerant loss by closing after the excessive pressure has been relieved.

A/C Condenser Core

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

The A/C condenser core has the following characteristics

1. It is an aluminum fin-and-tube design heat exchanger located in front of the vehicle radiator (8005).
2. It cools compressed refrigerant gas by allowing air to pass over fins and tubes to extract heat and by condensing gas to liquid refrigerant as it is cooled.

Refrigerant Lines

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

The condenser-to-evaporator tube contains high-pressure liquid refrigerant upstream of the A/C evaporator core orifice.

The A/C compressor-to-condenser discharge line contains high-pressure refrigerant gas. It has the following features

1. a fitting used to mount the A/C pressure sensor. (A long-travel Schrader-type valve stem core is installed in the fitting so that the A/C pressure cutoff switch can be removed without discharging the A/C system.)
2. a fitting used to mount a serviceable high-pressure A/C charge port valve

The A/C manifold and tube is attached to the A/C compressor, is sealed with O-ring seals, and has the following features

1. The upstream side contains low -pressure refrigerant gas.
2. The downstream side contains high-pressure refrigerant gas and a port to mount the A/C compressor pressure relief valve.

A/C Evaporator Core

Note. The evaporator core is not separately serviceable. It is serviced only with the evaporator core housing assembly.

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

The A/C evaporator core is the plate/fin type with a unique refrigerant flow path.

1. A mixture of refrigerant and oil enters the bottom of the A/C evaporator core through the A/C evaporator core inlet tube and then moves out of the A/C evaporator core through the A/C evaporator core outlet tube.
2. This flow pattern accelerates the flow of refrigerant and oil through the A/C evaporator core.

A/C Evaporator Core Orifice

Note. A new A/C evaporator core orifice should be installed whenever a new A/C compressor is installed.

The A/C evaporator core orifice has the following characteristics

1. It is located in the evaporator core inlet tube.
2. It has filter screens located on the inlet and outlet ends of the tube body.
3. The inlet filter screen acts as a strainer for the liquid refrigerant flowing through the A/C evaporator core orifice.
4. O-ring seals on the A/C evaporator core orifice prevent the high-pressure liquid refrigerant from bypassing the A/C evaporator core orifice.
5. The A/C evaporator core orifice assembly cannot be adjusted or serviced. It must be installed as a unit.

Suction Accumulator

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

The suction accumulator is mounted to the RH frame rail, below the coolant degas bottle.

After entering the inlet of the suction accumulator, heavier oil-laden refrigerant contacts an internally mounted dome (which serves as an umbrella) and drips down onto the bottom of the canister.

1. A small diameter oil bleed hole, in the bottom of the vapor return tube, allows the accumulated heavier liquid refrigerant and oil mixture to re-enter the compressor suction line at a controlled rate.
2. As the heavier mixture passes through the small diameter liquid bleed hole, it has a second chance to vaporize and recirculate through the A/C compressor without causing compressor damage due to slugging.
3. A fine mesh screened filter fits tightly around the bottom of the vapor return tube to filter out refrigerant system contaminant particles.
4. A desiccant bag is mounted inside the canister to absorb any moisture which may be in the refrigerant system.
5. A fitting located on the side of the suction accumulator is used to mount a serviceable low-pressure A/C charge port valve.

A/C Pressure Sensor

The PCM monitors the refrigerant system high-side pressure through the A/C pressure sensor.

1. A valve depressor, located inside the threaded end of the A/C pressure sensor, presses a Shrader valve stem on the compressor discharge line portion of the compressor manifold and tube assembly.
2. The A/C pressure sensor provides a voltage that is proportional to the A/C compressor discharge pressure, which allows for the A/C compressor discharge pressure to be monitored by the PCM.
3. The PCM uses this information for A/C clutch control, cooling fan control and idle speed. For specifications regarding operating pressures, refer to «INTRODUCTION - CNG, FLEX-FUEL & GASOLINE»(/ford/crown-victoria/ii-1997-2011/remont/testing-diagnostics/#engine-controls-introduction-cng-flex-fuel-gasoline) .
4. It is not necessary to recover the refrigerant to remove the A/C pressure sensor.

Low-Charge Protection Switch

The low-charge protection switch (19E561) is used to prevent A/C compressor damage in the event of a low refrigerant charge.

1. The electrical switch contacts open when the suction pressure drops below normal levels. The contacts close when the suction pressure rises. For specifications regarding operating pressure(s), refer to «CLIMATE CONTROL SYSTEM-GENERAL INFORMATION»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information) .
2. When the low-charge protection switch contacts open, the A/C clutch field coil is de-energized and compressor operation stops.
3. The low-charge protection switch is mounted on a Schrader valve-type fitting on the top of the suction accumulator/drier.
4. A valve depressor, located inside the threaded end of the low-charge protection switch, presses in on the Schrader valve stem, allowing the suction pressure inside the suction accumulator/drier to control the operation of the low-charge protection switch.
5. It is not necessary to discharge the refrigerant system to remove the low-charge protection switch.

Scheme 2

The spring lock coupling is a refrigerant line coupling held together by a garter spring inside a circular cage.

1. When the coupling is connected together, the flared end of the female fitting slips behind the garter spring inside the cage of the male fitting.
2. The garter spring and cage then prevent the flared end of the female fitting from pulling out of the cage.
3. Use only the O-ring seals listed in the Ford Master Parts Catalog for the spring lock coupling.
4. A plastic indicator ring is used on the spring lock couplings of the A/C evaporator core to indicate, during vehicle assembly, that the coupling is connected. Once the coupling is connected, the indicator ring is no longer necessary but will remain captive by the coupling near the cage opening.
5. The indicator ring may also be used during service operations to indicate connection of the coupling.
6. An A/C tube lock coupling clip may be used to secure the coupling but is not required.

Peanut Fitting

The A/C condenser core uses the peanut-shaped refrigerant fittings instead of spring lock couplings.

1. The male and female blocks of the peanut fitting are retained with a nut.
2. An O-ring seal is installed around the tube on the male block.
3. The female block is welded to the tube and is not adjustable.
4. Support the female fitting with a wrench to prevent twisting of the tubes.
5. When correctly assembled, the male and female fittings should be flush.
6. Use only the O-ring seals listed in the Ford Master Parts Catalog for the peanut fitting.

Scheme 3

Service Gauge Port Valves

The high-pressure service gauge port valve is located on condenser inlet line.

The low-pressure service gauge port valve is located on the suction accumulator.

Scheme 4

The fitting is an integral part of the refrigeration line or component.

1. Special couplings are required for both the high side and low side service gauge ports.
2. A new Schrader-type valve core can be installed if the seal leaks.
3. Always install the A/C charging valve cap on the service gauge port valves after repairing the refrigerant system.

Refer to CLIMATE CONTROL SYSTEM-GENERAL INFORMATION .

Removal and Installation

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

Scheme 5

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Scheme 9

1. If flushing of the air conditioning system has not been carried out, recover the refrigerant. For additional information, refer to «REFRIGERANT SYSTEM RECOVERY»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-system-recovery) .
2. Remove the drive belt from the A/C compressor pulley.
3. Disconnect the field coil electrical connector.
4. Loosen the bolt and detach the compressor manifold and tube assembly from the A/C compressor. Discard the O-ring seals.
5. Raise the vehicle. For additional information, refer to «JACKING & LIFTING»(/ford/crown-victoria/ii-1997-2011/remont/hoistjack/#jacking-lifting) .
6. Disconnect the crank sensor electrical connector.
7. Remove the nut and detach the wiring harness clips.
8. Remove the studs and the A/C compressor.
9. To install, reverse the removal procedure. Install new O-ring seals lubricated in clean PAG oil. If filtering of the refrigerant system is not to be carried out, lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to «REFRIGERANT OIL ADDING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-oil-adding) .
10. If filtering of the refrigerant system is not to be carried out, evacuate, charge and leak test the refrigerant system. For additional information, refer to «AIR CONDITIONING (A/C) SYSTEM RECOVERY, EVACUATION AND CHARGING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information) .

Scheme 10

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Scheme 16

1. Remove the A/C compressor. For additional information, refer to «AIR CONDITIONING (A/C) COMPRESSOR»(/ford/crown-victoria/ii-1997-2011/remont/ac-compressor/#hvac-system) .
2. Remove the A/C clutch plate retaining nut. Using the special tool, hold the A/C clutch plate. Remove the nut.
3. Remove the A/C clutch plate.
4. Remove the A/C clutch plate spacer.
5. Remove the A/C clutch pulley snap-ring.
6. Using the special tool, remove the A/C clutch pulley.
7. Note the location of the A/C clutch field coil connector.
8. Remove the A/C clutch field coil snap-ring.
9. Remove the A/C clutch field coil.

Installation

Note. If installing a new A/C compressor, the A/C clutch components should be reused unless obvious signs of damage are found. If excessive grooving is found, a new A/C clutch disc and hub and A/C compressor pulley must be installed together. Otherwise, each component can be installed individually where needed.

Scheme 17

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Scheme 21

1. Visually inspect the A/C clutch disc and hub, A/C compressor pulley and A/C clutch field coil for damage. Inspect for physical damage, including cracked or melted components or discoloration due to excessive heat. Inspect for excessive wear, including grooving in the A/C clutch disc and hub or A/C compressor pulley that is more than fingernail depth. Inspect for roughness in the A/C compressor pulley bearing.
2. Clean the A/C compressor, A/C clutch field coil, and the A/C clutch pulley mounting surfaces.
3. Align and install the A/C clutch field coil to the A/C compressor.
4. Install the A/C clutch field coil snap-ring.
5. Install the A/C clutch pulley.
6. Install the A/C clutch pulley snap-ring with the bevel side up.
7. Install one nominal thickness A/C clutch plate spacer onto the A/C compressor shaft.
8. Install the A/C clutch plate.
9. Install the clutch plate retaining nut. Using the special tool, hold the A/C clutch plate. Tighten the nut.
10. Measure and adjust (if necessary) the A/C clutch air gap by removing or adding A/C clutch plate spacers. For additional information, refer to «A/C CLUTCH AIR GAP ADJUSTMENT»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information) .
11. Install the A/C compressor. For additional information, refer to «AIR CONDITIONING (A/C) COMPRESSOR»(/ford/crown-victoria/ii-1997-2011/remont/ac-compressor/#hvac-system) .

Note. The evaporator core is not separately serviceable. It is serviced only with the evaporator core housing assembly.

Note. Replacement of the suction accumulator is not required when repairing the refrigerant system except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator.

Note. If an evaporator core leak is suspected, the evaporator core must be leak tested before it is removed from the vehicle. For additional information, refer to A/C EVAPORATOR/CONDENSER CORE -- ON VEHICLE LEAK TEST .

1. Remove the evaporator core housing. For additional information, refer to «EVAPORATOR CORE HOUSING»(/ford/crown-victoria/ii-1997-2011/remont/heater/#hvac-system__evaporator-core-housing) .
2. Transfer the components from the old evaporator core housing to the new evaporator core housing.
3. Install the evaporator core housing. For additional information, refer to «EVAPORATOR CORE HOUSING»(/ford/crown-victoria/ii-1997-2011/remont/heater/#hvac-system__evaporator-core-housing) .

Scheme 22

MATERIAL

Scheme 23

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Scheme 27

1. Disconnect the evaporator core inlet spring lock coupling. Discard the O-ring seals. For a fixed orifice, carry out Steps 2 and 3. For a broken orifice, carry out Steps 4 and 5.
2. Engage the special tool to the A/C evaporator core orifice (19D990), in the evaporator core inlet tube.
3. Hold the tool T-handle stationary and rotate the tool body to remove the A/C evaporator core orifice.
4. Screw the end of the special tool into the broken A/C evaporator core orifice, in the evaporator core inlet tube.
5. Hold the tool T-handle stationary and rotate the tool body to remove the broken A/C evaporator core orifice.

Scheme 28

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Scheme 30

Scheme 31

1. Lubricate and install the A/C evaporator core orifice O-ring seals using PAG oil.
2. Place the A/C evaporator core orifice into the special tool.
3. Insert the A/C evaporator core orifice into the evaporator core inlet tube until seated.
4. Remove the special tool.
5. Connect the evaporator core inlet spring lock coupling. Install new O-ring seals lubricated in clean PAG oil.

MATERIAL

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

Scheme 32

Scheme 33

1. Recover the refrigerant. For additional information, refer to «REFRIGERANT SYSTEM RECOVERY»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-system-recovery) .
2. Disconnect the spring lock couplings. Discard the O-ring seals.
3. Disconnect the low-charge protection switch electrical connector.
4. Raise the vehicle. For additional information, refer to «JACKING & LIFTING»(/ford/crown-victoria/ii-1997-2011/remont/hoistjack/#jacking-lifting) .
5. Remove the bolts and the suction accumulator.
6. To install, reverse the removal procedure. Install new O-ring seals lubricated in clean PAG oil. Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to «REFRIGERANT OIL ADDING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-oil-adding) .
7. Evacuate, leak test and charge the refrigerant system. For additional information, refer to «AIR CONDITIONING (A/C) SYSTEM RECOVERY, EVACUATION AND CHARGING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information) .

Air Conditioning (A/C) Pressure Relief Valve

MATERIAL

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

Scheme 34

1. Recover the refrigerant. For additional information, refer to «REFRIGERANT SYSTEM RECOVERY»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-system-recovery) .
2. Remove the A/C compressor pressure relief valve.
3. To install, reverse the removal procedure. Install a new O-ring seat lubricated in clean mineral oil. Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to «REFRIGERANT OIL ADDING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-oil-adding) .
4. Evacuate, leak test and charge the refrigerant system. For additional information, refer to «AIR CONDITIONING (A/C) SYSTEM RECOVERY, EVACUATION AND CHARGING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information) .

Condenser Core

MATERIAL

Note. If an A/C condenser core leak is suspected, the A/C condenser core must be leak tested before it is removed from the vehicle. For additional information, refer to A/C EVAPORATOR/CONDENSER CORE -- ON VEHICLE LEAK TEST .

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of system contamination from a failed A/C compressor or damage to the suction accumulator.

Scheme 35

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Scheme 37

1. Recover the refrigerant. For additional information, refer to «REFRIGERANT SYSTEM RECOVERY»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-system-recovery) .
2. Remove the battery. For additional information, refer to «BATTERY»(/ford/crown-victoria/ii-1997-2011/remont/charging-system/#battery-mounting-and-cables) .
3. Remove the pin-type retainers and the radiator upper sight shield.
4. Disconnect the condenser fittings. Discard the O-ring seals.
5. Remove the bolts and remove the radiator brackets.
6. Remove the condenser bracket nuts.
7. Tilt the radiator back and remove the A/C condenser core.
8. To install, reverse the removal procedure. Install new O-ring seals lubricated in clean PAG oil. Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to «REFRIGERANT OIL ADDING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-oil-adding) .
9. Evacuate, leak test and charge the refrigerant system. For additional information, refer to «AIR CONDITIONING (A/C) SYSTEM RECOVERY, EVACUATION AND CHARGING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information) .

Compressor Manifold and Tube Assembly

MATERIAL

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

Scheme 38

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Scheme 41

1. Recover the refrigerant. For additional information, refer to «REFRIGERANT SYSTEM RECOVERY»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-system-recovery) .
2. Disconnect the A/C pressure sensor electrical connector.
3. Loosen the bolt and detach the compressor manifold and tube assembly from the A/C compressor. Discard the O-ring seals.
4. Disconnect the spring-lock coupling. Discard the O-ring seals.
5. Disconnect the A/C fitting and remove the compressor manifold and tube assembly. Discard the O-ring seals.
6. To install, reverse the removal procedure. Install new O-ring seals lubricated in clean PAG oil. Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to «REFRIGERANT OIL ADDING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-oil-adding) .

Suction Accumulator To Evaporator Line

MATERIAL

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

Scheme 42

Scheme 43

1. Recover the refrigerant. For additional information, refer to «REFRIGERANT SYSTEM RECOVERY»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-system-recovery) .
2. Disconnect the spring lock coupling. Discard the O-ring seals.
3. Disconnect the spring lock coupling. Discard the O-ring seals.
4. Remove the suction accumulator-to-evaporator line.
5. To install, reverse the removal procedure. Install new O-ring seals lubricated in clean PAG oil. Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to «REFRIGERANT OIL ADDING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-oil-adding) .
6. Evacuate, leak test and charge the refrigerant system. For additional information, refer to «AIR CONDITIONING (A/C) SYSTEM RECOVERY, EVACUATION AND CHARGING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information)

Condenser to Evaporator Line

MATERIAL

Note. Installation of a new suction accumulator is not required when repairing the air conditioning system, except when there is physical evidence of contamination from a failed A/C compressor or damage to the suction accumulator.

Scheme 44

Scheme 45

1. Recover the refrigerant. For additional information, refer to «REFRIGERANT SYSTEM RECOVERY»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-system-recovery) .
2. Remove the nut and disconnect the A/C fitting. Discard the O-ring seal.
3. Disconnect the spring lock coupling at the evaporator core inlet. Discard the O-ring seals.
4. Remove the condenser-to-evaporator line.
5. To install, reverse the removal procedure. Install new O-ring seals lubricated in clean PAG oil. Lubricate the refrigerant system with the correct amount of clean PAG oil. For additional information, refer to «REFRIGERANT OIL ADDING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information__refrigerant-oil-adding) .
6. Evacuate, leak test and charge the refrigerant system. For additional information, refer to «AIR CONDITIONING (A/C) SYSTEM RECOVERY, EVACUATION AND CHARGING»(/ford/crown-victoria/ii-1997-2011/remont/general-servicing-all-makes/#hvac-control-system-general-information) .

See also:
• CONTROL COMPONENTS
• CLIMATE CONTROL SYSTEM-GENERAL INFORMATION
• INTRODUCTION - CNG, FLEX-FUEL & GASOLINE
• REFRIGERANT SYSTEM RECOVERY
• JACKING & LIFTING
• REFRIGERANT OIL ADDING
• A/C EVAPORATOR/CONDENSER CORE -- ON VEHICLE LEAK TEST
• EVAPORATOR CORE HOUSING
• BATTERY
• AIR CONDITIONING (A/C) COMPRESSOR