2003 FORD MUSTANG oil

SPECIFICATIONS
SECTION 412-
02: Heating and Ventilation 2003 Mustang Workshop Manual General Specifications
Item Specification
Lubricant
MERPOL® ESE-
M99B144-
B PAG Refrigerant Compressor Oil (R-134a Systems) F7AZ-19589-
DA (Motorcraft
YN- 12-C) WSH-
M1C231- B
Torque Specifications Description Nm lb-
in Interior evaporator core housing bracket nut and bolts 8 71 Klj . 1 ba
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REMOVAL AND INSTALLATION
Evaporator Core Housing
Removal
NOTE:
The evaporator core is not separately serviceable, it is serviced only with the evaporator core
housing assembly.
1. Disconnect the battery ground cable.
2. Recover the refrigerant. For additional information, refer to Section 412 - 00 .
3. Drain the cooling system. For additional information, refer to Section 303 - 03A or
Section 303 -
03B .
4. Remove the instrument panel. For additional information, refer to Section 501 - 12 .
5. Disconnect the heater hose couplings from the heater core. For additional information, refer to Section 412 - 00 .
6. Disconnect the vacuum connector. SECTION 412-
02: Heating and Ventilation 2003 Mustang Workshop Manual Material
Item Specification
PAG Compressor Oil (R-134a
Systems)
F7AZ- 19589- DA (Motorcraft
YN- 12-C) WSH-
M1C231-
B MERPOL®
NA ESE-
M99B144-
B Klj . 1 ba
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12. Remove the interior evaporator core housing bolts.
13. Remove the evaporator core housing.
Installation 1. To install, reverse the removal procedure. zLubricate the coolant hoses with coolant hose lubricant or plain water only, if needed.
z Install new O- ring seals lubricated with PAG oil. Klj . 3 ba
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SPECIFICATIONS
SECTION 412-
03: Air Conditioning 2003 Mustang Workshop Manual General Specifications
Item Specification
Lubricant
PAG Refrigerant Compressor Oil (R-134a Systems) F7AZ-19589-
DA (MC YN-12-
C) WSH-
M1C231-
B
Torque Specifications Description Nm lb-
ft lb-
in A/C compressor mounting bolts 25 18 —
A/C manifold retaining bolt 20 15 —
3.8L engine A/C compressor mounting bracket bolts 47 35 —
3.8L engine A/C compressor mounting bracket nut 25 18 —
A/C compressor clutch retaining bolt 13 10 —
Suction accumulator/drier clamp screw 8 — 71
Coolant bottle bolts 10 — 89
Peanut fittings 8 — 71
Radiator bracket bolts 9 — 81
Condenser core bracket bolts 5 — 44
A/C muffler bracket nut 25 18 — Klj . 1 ba
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A/C Compressor and Clutch Assembly
NOTE:
Internal A/C compressor components are not serviced separately. The FS- 10 A/C compressor
is serviced only as an assembly. The A/C clutch pulley, A/C clutch field coil (19D798) and the shaft
seal are serviceable.
The FS- 10 A/C compressor has the following characteristics:
z A ten- cylinder swashplate design utilizing the tangential design mount. Item Part Number Description
1 19E561 A/C cycling switch
2 19D701 A/C charge port valve (low side)
3 19D594 Refrigerant containment switch (3.8L vehicles)
3 19D594 Dual-
function pressure switch (4.6L vehicles) 4 19D734 A/C manifold and tube
5 19D644 A/C compressor pressure relief valve
6 19703 A/C compressor
7 19D701 A/C charge port valve (high side)
8 19712 A/C condenser core
9 19835 Condenser to evaporator tube
10 19C836 Suction accumulator
11 — A/C evaporator core (part of 19850 assembly) Klj . 2 ba
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z
A one- piece lip- type seal (installed from the front of the A/C compressor) is used to seal it at the
shaft opening in the assembly.
z Five double- acting pistons operate within the cylinder assembly. The pistons are actuated by a
swashplate that converts the rotating action of the shaft to a reciprocating force.
z Reed- type discharge valves are located between the cylinder assembly and the head at each
end of the A/C compressor.
z The A/C compressor uses PAG oil, or equivalent. This oil contains special additives required for
the A/C compressor.
z The A/C compressor oil from vehicles equipped with an FS- 10 A/C compressor may have some
dark colored streaking while maintaining a normal oil viscosity. This is normal for the A/C
compressor and is caused by break- in wear of the piston rings.
The magnetic A/C clutch has the following characteristics: zIt drives the compressor shaft.
z When the battery positive voltage (B+) is applied to the A/C clutch field coil, the clutch plate and
hub assembly is drawn toward the A/C clutch pulley.
z 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.
z When (B+) is removed from the A/C 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 Item Part Number Description
1 19D798 A/C clutch field coil
2 19D784 A/C clutch pulley
3 N805338-S2 Pulley snap ring
4 19D648 A/C clutch hub spacer
5 19D786 Disk and hub assembly
6 N805332-S2 A/C clutch bolt Klj . 3 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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