2003 FORD MUSTANG oil

Connect
1. NOTE: Inspect and clean both the coupling ends. Lubricate the O- ring seals with clean engine
oil.
Connect the fitting.
zPull on the fitting to make sure it is fully engaged.
z Install the safety clip. Klj . 3 ba
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GENERAL PROCEDURES
Fuel Line Fittings —
Push Connect
Disconnect WARNING: Do not smoke or carry lighted tobacco or open flame of any type when
working on or near any fuel- related components. Highly flammable mixtures are always present
and may be ignited, resulting in possible personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before servicing or disconnecting any of the fuel lines or fuel system components,
the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing
personal injury or a fire hazard.
1. Relieve the fuel system pressure. For additional information, refer to Pressure Relief in this
section.
2. Disconnect the safety clip from the male hose.
3. Install the Fuel Line Disconnect Set and push into the fitting.
SECTION 310-
00: Fuel System — General Information 2003 Mustang Workshop Manual Special Tool(s)
Disconnect Tool, Spring Lock
Coupling
310-
S039 (T90T-9550- S)
Material Item Specification
SAE 5W-
20 Super Premium
Blend Motor Oil
XO- 5W20-QSP or equivalent WSS-
M2C153-
H Klj . 1 ba
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4. Separate the fittings.
zClean and inspect the fittings for damage.
Connect 1. NOTE: Lubricate the tube end with clean engine oil to ease assembly.
Connect the fitting. zAlign the tube to the fitting and push until you hear a click.
2. Pull on the fitting to make sure it is fully engaged, then install the safety clip. Klj . 2 ba
32003 Mustang Workshop Manual
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GENERAL PROCEDURES
Fittings
—R-Clip
Disconnect WARNING: Do not smoke or carry lighted tobacco or open flame of any type when
working on or near any fuel- related components. Highly flammable mixtures are always present
and may be ignited, resulting in possible personal injury.
WARNING: Fuel in the fuel system remains under high pressure even when the engine is
not running. Before servicing or disconnecting any of the fuel lines or fuel system components,
the fuel system pressure must be relieved to prevent accidental spraying of fuel, causing
possible personal injury or a fire hazard.
CAUTION: Do not use any tools. The use of tools may cause a deformity in the clip
components which may cause fuel leaks.
1. Relieve the fuel system pressure. For additional information, refer to Pressure Relief in this
section.
2. Remove the shipping tab by bending.
3. Spread the R- clip legs and push the clip into the fitting.
SECTION 310-
00: Fuel System — General Information 2003 Mustang Workshop Manual Material
Item Specification
SAE 5W-
20 Super Premium
Synthetic Blend Motor Oil
XO- 5W20- QSP or equivalent WSS-
M2C153-
H Klj . 1 ba
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4. Separate the fitting from the tube.
Connect 1. NOTE: Apply a light coat of clean engine oil.
Clean and inspect the fitting and the tube for damage.
2. Insert the R- clip into the fitting.
3. Insert the tube in the fitting and push together until a click is heard. Klj . 2 ba
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SPECIFICATIONS
a
Manifold gauge set pressures may vary slightly depending on the distance between the service
SECTION 412-
00: Climate Control System - General Information 2003 Mustang Workshop Manual General Specifications
Item Specification
A/C Compressor
Type FS-
10 swashplate, 5 double- acting pistons Displacement 170 cc (10.4 cu in)
Rotation Clockwise
A/C Pressure Relief Valve
a Open pressures 3,792-
4,137 kPa (550- 600 psi) A/C Pressure Sensor Refer to the Powertrain Control/Emissions
Diagnosis (PC/ED) manual.
Coolant Hose Lubricant
MERPOL® ESE-
M99B144- B Evaporator Core Orifice
Color Orange
Diameter 1.45 mm (0.057 in)
Magnetic Clutch
Air gap clearance 0.35-
0.75 mm (0.014- 0.030 in) Dual Function Pressure Switch (V8)
a Fan on/open 2,137-
2,344 kPa (310- 340 psi) Fan off/close 1,655-
2,137 kPa (240- 310 psi) Clutch off/open 2,999-
3,275 kPa (435- 475 psi) Clutch on/closed 1,517-
1,931 kPa (220- 280 psi) Pressure Cutoff Switch (V6)
a Open 2,999-
3,275 kPa (435- 475 psi) Close 1,586-
1,999 kPa (230- 290 psi) A/C Cycling Switch Open and Closed Pressures
a Open pressure 145-
159 kPa (21- 23 psi) Close pressure 290 kPa (42 psi)
Refrigerant Lubricant and Capacity
PAG Refrigerant Compressor Oil (R-134a Systems)
F7AZ- 19589- DA (Motorcraft YN-12- C) WSH-
M1C231- B Capacity 254 ml (8.6 oz)
Refrigerant and Capacity
R134a Refrigerant YN-
19 WSH-
M17B19- A Capacity .96 kg (34 oz)
Refrigerant System Cleaner
A/C Systems Flushing Solvent F4AZ-19579-
A — Klj . 1 ba
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DESCRIPTION AND OPERATION
Climate Control System
WARNING: To avoid accidental deployment and possible injury, the air bag system
backup power supply must be depleted before repairing any climate control components. To
deplete the backup power supply, disconnect the battery ground cable and wait one minute.
Failure to follow these instructions may result in personal injury.
WARNING: Carbon monoxide is colorless, odorless and dangerous. If it is necessary to
operate the engine with the vehicle in a closed area such as a garage, always use an exhaust
collector to vent the exhaust gases outside the closed area.
WARNING: R- 134a is classified as a safe refrigerant, but misuse can make it dangerous.
The following precautions must be observed:
zAlways wear safety goggles when repairing an air conditioning system.
z Avoid contact with liquid refrigerant R- 134a. R-134a vaporizes at approximately - 25°C (-
13°F) under atmospheric pressure and it will freeze skin tissue.
z Never allow refrigerant R- 134a gas to escape in quantity in an occupied space. R- 134a is
non- toxic, but it will displace the oxygen needed to support life.
z Never use a torch in an atmosphere containing R- 134a gas. R-134a is non-toxic at all
normal conditions, but when it is exposed to high temperatures, such as a torch flame, it
decomposes. During decomposition it releases irritation and toxic gases (as described in
the MSDS sheet from the manufacturer). Decomposition products are hydrofluoric acid,
carbon dioxide and water.
z Do not allow any portion of the charged air conditioning system to become too hot. The
pressure in an air conditioning system rises as the temperature rises and temperatures
of approximately 85°C (185°F) can be dangerous.
z Allow the engine to cool sufficiently prior to carrying out maintenance or serious burns
and injury can occur.
CAUTION: To avoid damaging the vehicle or A/C components, the following precautions
must be observed:
zThe A/C refrigerant of all vehicles must be identified and analyzed prior to refrigerant
charging. Failure to due so can contaminate the shop bulk refrigerant and other vehicles.
z Do not add R- 12 refrigerant to an A/C system that requires the use of R- 134a refrigerant.
These two types of refrigerant must never be mixed. Doing so can damage the A/C
system.
z Charge the A/C system with the engine running only at the low- pressure side to prevent
refrigerant slugging from damaging the A/C compressor.
z Use only R- 134a refrigerant. Due to environmental concerns, when the air conditioning
system is drained, the refrigerant must be collected using refrigerant recovery/recycling
equipment. Federal law REQUIRES that R- 134a be recovered into appropriate recovery
equipment and the process be conducted by qualified technicians who have been
certified by an approved organization, such as MACS, ASI etc. Use of a recovery machine
dedicated to R- 134a is necessary to reduce the possibility of oil and refrigerant
incompatibility concerns. Refer to the instructions provided by the equipment manufacturer when removing refrigerant from or charging the air conditioning system. SECTION 412-
00: Climate Control System - General Information 2003 Mustang Workshop Manual Klj . 1 ba
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z
Refrigerant R- 134a must not be mixed with air for leak testing or used with air for any
other purpose above atmospheric pressure. R- 134a is combustible when mixed with high
concentrations of air and higher pressures.
z A number of manufacturers are producing alternative refrigerant products that are
designed to be used instead of R- 134a refrigerant. The use of any unauthorized
substitute refrigerant can severely damage the A/C components. If repair is required, use
only new or recycled refrigerant R- 134a.
CAUTION: To avoid contamination of the A/C system, always observe the following:
z Keep service tools and the work area clean.
z Never open or loosen a connection before discharging the system.
z When loosening a connection, if any residual pressure is evident, allow it to leak out
before opening the fitting.
z Evacuate a system that has been opened to install a new component or one that has
been discharged through leakage before charging.
z Seal an open fitting with a cap or plug immediately after disconnecting a component
from the system.
z Clean the outside of the fittings thoroughly before disconnecting a component from the
system.
z Do not remove the sealing caps from a new component until ready to install.
z Refrigerant oil will absorb moisture from the atmosphere if left uncapped. Do not open
an oil container until ready to use, and install the cap immediately after using. Store the
oil in a clean, moisture- free container.
z Install a new O- ring seal before connecting an open fitting. Coat the fitting and the O- ring
seal with refrigerant oil before connecting.
z When installing a refrigerant line, avoid sharp bends. Position the line away from the
exhaust or any sharp edges that can chafe the line.
z Do not open a refrigerant system or uncap a new component unless it is as close as
possible to room temperature. This will prevent condensation from forming inside a
component that is cooler than the surrounding air.
The manual climate control system heats or cools the vehicle depending on the function selector
switch position and the temperature selected.
zThe function selector switch position determines heating or cooling and air distribution.
z The temperature control setting determines the air temperature.
z The heater blower motor switch (18578) varies the blower motor speed.
Principles of Operation
There are four main principles involved with the basic theory of operation:
zheat transfer
z latent heat of vaporization
z relative humidity
z effects of pressure Heat Transfer Klj . 2 ba
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