2003 FORD MUSTANG oil filter

X = pressure applied Adjust the digital TR sensor as necessary.
Incorrect Pressures
·
Low reverse clutch pressure,
low reverse band pressure, low
line pressure
z Forward Off, Intermediate
Off, Direct X
z Forward Off, Intermediate
X, Direct Off
z Forward Off, Intermediate
X, Direct X
z Forward X, Intermediate
Off, Direct X
z Forward X, Intermediate X,
Direct Off
z Forward X, Intermediate X,
Direct X
z Forward X, Intermediate
Off, Direct Off ·
Check for which pressures are on and refer to Band/Clutch
Application Chart 601 and corresponding routines.
„ 324, 301
„ 325, 301
„ 323, 324, 325, 301
„ 324
„ 325
„ 323, 324, 325
„ Refer to appropriate mechanical diagnosis. Mechanical
·
Bands, clutches or seals
damaged or worn ·
Refer to Transmission Disassembly and Assembly.
Shift Concerns: No Manual 1st Gear Possible Component Reference/Action
216 —
ELECTRICAL ROUTINE Powertrain Control System
·
Electrical inputs/outputs,
vehicle wiring harnesses, PCM,
shift solenoids, digital TR
sensor ·
Carry out Self- Test. Refer to the Powertrain
Control/Emissions Diagnosis (PC/ED) manual for diagnosis
and testing of the Powertrain Control System. Go To Pinpoint Test A or
Go To Pinpoint Test C . Repair as required. Clear
DTCs, road test and repeat Self- Test. 316 —
HYDRAULIC/MECHANICAL ROUTINE Shift Linkage, Cable, Digital TR
Sensor
·
Damaged or incorrectly
adjusted ·
Inspect and repair as required. Verify transmission shift cable
adjustment; refer to Section 307 - 05 . Adjust transmission shift
cable as necessary. After repairing transmission shift cable,
verify that the digital TR sensor is correctly adjusted. Adjust
the digital TR sensor as necessary. Incorrect Pressures
·
Low reverse clutch pressure,
low reverse band pressure, low
line pressure, low EPC
pressure ·
Check pressure at line and EPC pressure taps; refer to Line
Pressure Chart for specifications. If pressures are low, check
the following components: oil filter and seal assembly, main
controls, reverse clutch assembly and reverse servo
assembly. Fluid Filter and Seal Assembly
·
Plugged or damaged ·
Install a new filter and seal assembly. Klj . 15 ba
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Ford Motor Company has approved a procedure to provide technicians with a non-
CFC method
of flushing contaminated A/C system heat exchangers, A/C evaporator core, and A/C
condenser core. The procedure allows the specific components to be cleaned and flushed while
installed in their normal in- vehicle location. The types of contamination flushed include particle
matter that results from A/C compressor or desiccant failure within the suction accumulator/drier
and gummy residue that can form when refrigerant oil is overheated during A/C compressor
seizure. The flushing process is a two- step procedure that involves the use of an A/C Flush and
Purge Machine 219- 00022 to:
z Circulate the flushing solvent through the heat exchanger in the reverse direction of
normal refrigerant flow (back- flushing). Particulate matter picked up during flushing is
filtered from the returning solvent before the solvent is returned to the reservoir for
continued circulation.
z Remove the flushing solvent from the heat exchanger. In this step of the procedure,
pressurized air 621- 862 kPa (90-125 psi) is used to push and evaporate any remaining
flush solvent from the heat exchanger.
2. Discharge the A/C system. Observe all safety precautions. For additional information, refer to the procedure in this section.
3. Disconnect the refrigerant lines from the heat exchanger(s) to be flushed.
4. Connect the A/C Flush and Purge Machine 219- 00022 and A/C Flush and Purge Fitting Kit 219-
00024 to the heat exchanger to be flushed. Do not flush through the A/C evaporator core orifice,
mufflers or hoses. Internal plumbing and material make- up of these components make it
impossible to correctly remove foreign material or residual flushing solvent.
5. Use 3.785 liters (one gallon) of A/C Systems Flushing Solvent part number F4AZ-19579- A to
flush the heat exchanger for a minimum of 15 minutes. The flush solvent may be used for one
or both heat exchangers in the A/C system. However, the flush solvent is intended for one
vehicle only. The filter used on the flushing unit is also intended for use on one vehicle only.
6. Flush the component for a minimum of 15 minutes.
7. Apply 621- 862 kPa (90-125 psi) pressurized air to the component for a minimum of 30 minutes.
The 30- minute purge time is required to force and evaporate all residual solvent from the A/C
system component. Failure to successfully remove all residual solvent within the component
can result in system damage when reconnected and operated. Dispose of the used flush
solvent and filter in accordance with local, state and federal emissions.
8. NOTE: A/C system filtering as described in this section is optional if system flushing is carried
out. However, the filter kit use is recommended after flushing if the A/C system contamination is
extensive.
Install a new A/C evaporator core orifice in any vehicle being serviced for A/C compressor or
desiccant failure.
9. Install new refrigerant hoses if clogged with foreign material.
10. Reconnect the heat exchanger being serviced.
11. Add additional refrigerant oil as required. For additional information, refer to the procedure in this section.
12. Evacuate, leak test and charge the A/C system. For additional information, refer to the procedure in this section.
13. Check the system for normal operation. Klj . 2 ba
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6. Correctly oil match the system. For additional information, refer to
Refrigerant Oil Adding in this
section.
7. Evacuate and charge the system. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging in this section.
8. Check all refrigerant system hoses, lines and the position of the newly installed filters to be sure they do not interfere with other engine compartment components. If necessary, use tie straps to
make adjustments.
9. Provide adequate airflow to the front of the vehicle (with a fan, if necessary). Select MAX A/C operation and set the blower motor speed to maximum. Start the engine and let it idle briefly.
Make sure the A/C system is operating correctly.
10. Gradually bring the engine up to 1,200 rpm by running it at lower rpms for short periods (first at 800 rpm, then at 1,000 rpm). Set the engine at 1,200 rpm and run it for one hour with the A/C
system operating.
11. Stop the engine.
12. Recover the refrigerant from the system. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging in this section.
13. Remove the fittings, flexible hoses and pancake filter from between the and the condenser to evaporator tube.
14. Discard the pancake filter. It can be used one time only.
15. Reconnect the condenser to evaporator tube to the A/C condenser core.
16. Evacuate and charge the system. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging in this section. Klj . 2 ba
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GENERAL PROCEDURES
Inspection and Assembly Requirements —
Following an A/C
Compressor Failure
CAUTION: To prevent refrigerant system contamination and possible failure of the new
A/C compressor, carry out the following procedures.
1. NOTE: A dirty A/C evaporator core orifice or a condenser to evaporator tube containing black
refrigerant oil and particles indicates that the A/C compressor has failed and a new A/C
compressor must be installed.
Remove and discard the A/C evaporator core orifice. For additional information, refer to Section 412 - 03 .
2. Remove the A/C compressor. For additional information, refer to Section 412 - 03 .
z Drain the residual refrigerant oil from the A/C compressor and measure the volume for
correct system oil matching. For additional information, refer to Refrigerant Oil Adding in
this section.
3. NOTE: The suction accumulator/drier and A/C evaporator core orifice cannot be cleaned and a
new A/C evaporator core orifice must be installed.
Remove the suction accumulator/drier. For additional information, refer to Section 412 - 03 .
z Drain the residual refrigerant oil from the suction accumulator/drier and measure the
volume for correct oil system matching. For additional information, refer to Refrigerant Oil Adding in this section.
4. NOTE: System flushing is the preferred method of cleaning. However, if flushing equipment is
not available, carry out system filtering.
Carry out an A/C system flushing or filtering procedure:
zIf A/C system flushing equipment is available, clean the A/C evaporator core and the A/C
condenser core by flushing. For additional information, refer to Flushing in this section.
z If A/C system flushing equipment is not available, carry out a system filtering procedure.
For additional information, refer to Refrigerant Oil Adding After A/C Component
Replacement in this section.
5. Install a new A/C compressor. For additional information, refer to Section 412 - 03 .
6. Install the new suction accumulator/drier. For additional information, refer to Section 412 - 03 .
7. Install the new A/C evaporator core orifice. For additional information, refer to Section 412 - 03 .
8. Correctly oil match the system. For additional information, refer to Refrigerant Oil Adding in this
section.
9. Evacuate and charge the system. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging in this section.
SECTION 412-
00: Climate Control System - General Information 2003 Mustang Workshop Manual Klj . 1 ba
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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.
zA mixture of refrigerant and oil enters the bottom of the A/C evaporator core through the A/C
evaporator core inlet tube and moves out of the A/C evaporator core through the A/C
evaporator core outlet tube.
z This flow pattern accelerates the flow of refrigerant and oil through the A/C evaporator core.
Evaporator Core Orifice
NOTE: The evaporator core orifice is an integral part of the condenser to evaporator line and should
be installed as an assembly with the line.
NOTE: A new evaporator core orifice should be installed whenever a new A/C compressor is installed.
The evaporator core orifice has the following characteristics:
zIt is located in the A/C condenser to evaporator line.
z It has filter screens located on the inlet and outlet ends of the tube body.
z The inlet filter screen acts as a strainer for the liquid refrigerant flowing through the evaporator
core orifice.
z O-ring seals on the evaporator core orifice prevent the high- pressure liquid refrigerant from
bypassing the evaporator core orifice. Klj . 5 ba
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z
Adjustment or repair cannot be made to the evaporator core orifice assembly. A new evaporator
core orifice 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.
In addition to the preceding condition, a new suction accumulator should be installed if one of the
following conditions exist:
zThe suction accumulator is perforated.
z The refrigerant system has been opened to the atmosphere for a period of time longer than
required to make a minor repair.
z There is evidence of moisture in the system such as internal corrosion of metal refrigerant lines
or the refrigerant oil is thick and dark. Item Part Number Description
1 19E561 A/C cycling switch
2 — O-
ring seal (part of 19C836) 3 19D701 Low pressure service gauge port valve
4 — Inlet from A/C evaporator core (part of 19C836)
5 — Outlet to A/C compressor (part of 19C836)
6 — Anti-
siphon hole (part of 19C836) 7 — Desiccant bag (part of 19C836)
8 — Oil return orifice filter (part of 19C836)
9 — Vapor return tube (part of 19C836)
10 — Suction accumulator dome (part of 19C836) Klj . 6 ba
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The suction accumulator (19C836) is mounted to the A/C accumulator bracket (19D606) to the right of
the vehicle centerline. The inlet tube of the suction accumulator attaches directly to the A/C evaporator
core outlet tube and the outlet tube attaches to the A/C manifold and tube.
After entering the inlet of the suction accumulator, the heavier oil-
laden refrigerant contacts an
internally mounted dome (which serves as an umbrella) and drips down onto the bottom of the
canister.
zA small diameter oil bleed hole, in the bottom of the vapor return tube, allows the accumulated
heavier liquid refrigerant and oil mixture to reenter the compressor suction line at a controlled
rate.
z 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.
z A fine mesh screened filter fits tightly around the bottom of the vapor return tube to filter out
refrigerant system contaminant particles.
z A desiccant bag is mounted inside the canister to absorb any moisture which may be in the
refrigerant system.
z A fitting located on the top of the suction accumulator is used to attach the A/C cycling switch. A
long- travel Schrader- type valve stem core is installed in the fitting so that the A/C cycling switch
can be removed without discharging the A/C system.
A/C Cycling Switch
The A/C cycling switch is mounted on a Schrader- type valve fitting on the top of the suction
accumulator.
zA valve depressor, located inside the threaded end of the A/C cycling switch, presses in on the
Schrader valve stem.
z This allows the suction pressure inside the suction accumulator to control the operation of the
A/C cycling switch.
z The electrical switch contacts open when the suction pressure drops. The contacts close when
the suction pressure rises. For specifications regarding operating pressure(s), refer to Section 412 - 00 .
z The A/C cycling switch will control the A/C evaporator core pressure at a point where the
plate/fin surface temperature will be maintained slightly above freezing.
z This prevents icing of the A/C evaporator core and blockage of air flow.
z It is not necessary to discharge the refrigerant system to remove the A/C cycling switch.
Dual- Function Pressure Switch (4.6L)
The dual- function pressure switch is used to interrupt A/C compressor operation in the event of high Klj . 7 ba
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REMOVAL AND INSTALLATION
Air Conditioning (A/C) Compressor —
3.8L
Removal and Installation CAUTION: If installing a new air conditioning compressor due to an internal failure of the
old unit, you must carry out the following procedures to remove contamination from the air
conditioning system.
zIf A/C flushing equipment is available, carry out the flushing of the air conditioning
system prior to installing a new air conditioning compressor. For additional information,
refer to Section 412 - 00 .
z If A/C flushing equipment is not available, carry out filtering of the air conditioning
system after a new air conditioning compressor has been installed. For additional
information, refer to Section 412 - 00 .
z Install a new evaporator core orifice (19D990), as directed by the A/C flushing or filtering
procedure.
z Install a new suction accumulator (19C836), as directed by the A/C flushing or filtering
procedure.
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.
1. If flushing of the air conditioning system has not been performed, recover the refrigerant. For additional information, refer to Section 412 - 00 .
2. Disconnect the battery. For additional information, refer to Section 414 - 01
3. Unlatch the air breather.
SECTION 412-
03: Air Conditioning 2003 Mustang Workshop Manual Material
Item Specification
PAG Refrigerant Compressor
Oil (R-
134a Systems)
F7AZ- 19589- DA (Motorcraft YN-
12- C) WSH-
M1C231-
B Klj . 1 ba
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