Ford Falcon. Manual — part 307
412-03-1 Air
Conditioning 412-03-1
SECTION : 412-03 Air Conditioning
VEHICLE APPLICATION : 2003.0 BA Falcon
CONTENTS
PAGE
SPECIFICATIONS
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .412-03-3
DESCRIPTION AND OPERATION
Air Conditioning Safety Precautions . . . . . . . . . . . . . . . . . . . . . ..412-03-4
Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . . ...412-03-5
A/C Compressor and Clutch Assembly . . . . . . . . . . . . . . . . . . . . 412-03-6
A/C Compressor Pressure Relief Valve . . . . . . . . . . . . . . . . . . . ...412-03-6
A/C Condenser Core . . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-6
Refrigerant
Lines
. . . . . . . . . . . . . . . . . . . . . . . . . . . . ..412-03-7
A/C Evaporator Core . . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-7
A/C Orifice Tube Assembly . . . . . . . . . . . . . . . . . . . . . . . . ..412-03-8
Refrigerant
Dye
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-8
Suction
Accumulator
. . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-8
A/C Cycling Switch (evaporator thermistor) . . . . . . . . . . . . . . . . . . .412-03-8
A/C Pressure Cut-Off Switch (Pressure Transducer) . . . . . . . . . . . . . . ..412-03-9
Quick Joint Connection . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-9
Air Conditioning Joint Design . . . . . . . . . . . . . . . . . . . . . . . .412-03-10
Charge Port Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-11
Engine Cooling Fans (Condenser Fans) . . . . . . . . . . . . . . . . . . ...412-03-11
DIAGNOSIS AND TESTING
Air Conditioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-12
Inspection and Verification . . . . . . . . . . . . . . . . . . . . . . . . .412-03-12
A/C Functional Inspection Chart . . . . . . . . . . . . . . . . . . . . . . 412-03-12
A/C Fault Symptom Chart . . . . . . . . . . . . . . . . . . . . . . . . ..412-03-12
Air Conditioning System Performance Test . . . . . . . . . . . . . . . . . ...412-03-18
A/C System Leak Test . . . . . . . . . . . . . . . . . . . . . . . . . ...412-03-22
A/C System Noise Test . . . . . . . . . . . . . . . . . . . . . . . . . ..412-03-23
Module
Configuration
. . . . . . . . . . . . . . . . . . . . . . . . . . .412-03-24
WDS Parameter Identifier (PID) chart . . . . . . . . . . . . . . . . . . . . 412-03-24
WDS Diagnostic Trouble Code (DTC) chart . . . . . . . . . . . . . . . . . ..412-03-25
A/C disable strategy chart . . . . . . . . . . . . . . . . . . . . . . . . ..412-03-27
Connector Circuit Reference . . . . . . . . . . . . . . . . . . . . . . . ..412-03-28
Air Conditioning & HVAC Relay and Fuses . . . . . . . . . . . . . . . . . ...412-03-31
Pinpoint
Tests
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-31
GENERAL PROCEDURES
Manifold Gauge Set Connection . . . . . . . . . . . . . . . . . . . . . . ..412-03-39
Electronic Leak Detection . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-40
Fluorescent Dye Leak Detection . . . . . . . . . . . . . . . . . . . . . . ..412-03-40
A/C System Discharging and Recovery . . . . . . . . . . . . . . . . . . . ...412-03-42
A/C System Evacuation and Charging . . . . . . . . . . . . . . . . . . . . 412-03-42
Refrigerant Oil Replacement Quantity . . . . . . . . . . . . . . . . . . . . .412-03-43
Replenishment of Refrigerant Oil . . . . . . . . . . . . . . . . . . . . . . .412-03-44
A/C System Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . ...412-03-44
412-03-2 Air
Conditioning 412-03-2
(Continued)
REMOVAL AND INSTALLATION
A/C Hose/Tube Pad Fitting . . . . . . . . . . . . . . . . . . . . . . . . ..412-03-45
O-Ring Removal and Lubrication . . . . . . . . . . . . . . . . . . . . . . .412-03-46
Air Conditioning (A/C) Compressor — I6 Engine . . . . . . . . . . . . . . . . .412-03-46
Air Conditioning (A/C) Compressor — V8 Engine . . . . . . . . . . . . . . . ...412-03-47
Compressor Clutch, Compressor Pressure Relief Valve and Compressor Shaft Seal . ...412-03-48
Air Conditioning (A/C) Compressor Bracket . . . . . . . . . . . . . . . . . . 412-03-48
Evaporator Core . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...412-03-49
Orifice Tube Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . .412-03-50
Quick Joint Clamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-52
Suction Accumulator . . . . . . . . . . . . . . . . . . . . . . . . . . . 412-03-54
Pressure Cut-off Switch (Pressure Transducer) . . . . . . . . . . . . . . . . ..412-03-55
Condenser Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . ...412-03-56
Condenser Inlet Hose Assembly (Discharge Hose) . . . . . . . . . . . . . . . 412-03-57
Compressor Inlet Hose Assembly (I6 & V8 — Suction Hose) and Accumulator Outlet Tube
Assembly (V8 — Suction Tube) . . . . . . . . . . . . . . . . . . . . . . ...412-03-57
Condenser to Evaporator tube assembly (A/C liquid line) . . . . . . . . . . . . ...412-03-58
Evaporator clamp (E-Clamp) . . . . . . . . . . . . . . . . . . . . . . . ...412-03-59
Air Conditioning Cycling Switch (evaporator thermistor) . . . . . . . . . . . . . .412-03-59
Engine Cooling Fans (Condenser Fans) . . . . . . . . . . . . . . . . . . . .412-03-60
412-03-3 Air
Conditioning 412-03-3
SPECIFICATIONS
General Specifications
Description
Nm
Description
Specification
Suction accumulator & A/C liquid line -
15
evaporator E-clamp bolt
A/C compressor 10S17C
Suction tube (V8) clamp - side rail
6
Displacement
188 cc
screw
Cylinder bore
32.0 mm (1.26 in)
Suction hose/tube clamp - spring tower
35
Cylinder stroke
23.38 mm (0.92 in)
nut
Rotation
Clockwise
A/C condenser core - A/C liquid line &
10
Magnetic clutch
discharge hose bolts
Air gap between pulley
0.35 mm - 0.60 mm
A/C condenser core bracket - radiator
7
and hub
(0.014 in 0.024 in)
bolts
A/C cycling switch (evaporator thermistor)
Discharge hose clamp - radiator
8
support bolt
Manual Climate Control
Discharge hose clamp (V8) - cross
8
Air outlet vent
6.00
°C max
member bolt
temperature cycling
Switching temperatures
differential
will increase as the
O-Ring Specifications
blower fan speed
Description
Part No
reduces.
Refrigerant O-Ring, green/blue
BA19S710B
Automatic Climate Control
evaporator inlet (small)
Air outlet vent
6.00
°C max
Refrigerant O-Ring, green/blue
BA19S710A
temperature cycling
Switching temperatures
evaporator outlet (large)
differential
will increase as
temperature selection
Refrigerant O-Ring, black discharge
V890158S
becomes hotter.
hose/tube (small)
A/C pressure relief valve
Refrigerant O-Ring, black suction
V890157S
hose/tube (large)
Open
3,430 - 4,100kPa (497 -
595psi)
A/C pressure cut-off switch (pressure
transducer)
low pressure cut-out
200kPa
high pressure cut-out
3,170kPa
Lubricants
PAG Compressor Oil
200cc (supplied in comp)
ND-Oil 8 (250 cc can -
AY19L000A)
Refrigerant R-134a
650
± 50g
( YN-19)
Torque Specifications
Description
Nm
A/C compressor bolt (black colour)
23
upper front mount
A/C compressor bolts (gold colour)
23
A/C compressor bracket bolts - I6
48
A/C compressor bracket bolts - V8
28
A/C liquid line - front LH apron body
10
clamp bolt
A/C liquid line - rear LH body saddle
8
clamp nut
A/C liquid line - nut joint
23
A/C compressor - suction & discharge
10
hose bolts
Suction accumulator bracket nuts
8
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412-03-4 Air
Conditioning 412-03-4
DESCRIPTION AND OPERATION
Refrigerant oil will absorb moisture from the
Air Conditioning Safety Precautions
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.
WARNING: To avoid accidental deployment
and possible injury, the air bag system backup
Air conditioning O-rings are made from a
power supply must be depleted before repairing
material compatible with refrigerant and
any climate control components. To deplete the
refrigerant oil. Always use the correct
backup power supply, disconnect the battery
replacement air conditioning O-ring, or A/C
positive cable and wait one minute. Failure to
system leakage may occur.
follow these instructions may result in personal
If an A/C O-ring is not supplied with A/C hose
injury.
assembly, coat the refrigerant O-ring with oil
Use only R-134a refigerant
before assembling.
When installing a refrigerant line, avoid sharp
WARNING: R-134a is classified as a safe
bends. Position the line away from the
refrigerant, but misuse can make it dangerous.
exhaust or any sharp edges that can chafe the
The following precautions must be observed.
line.
Failure to follow these instructions may result in
Tighten threaded fittings only to
personal injury.
specifications. The aluminum fittings used in
Always wear safety goggles when repairing an
the refrigerant system will not tolerate
air conditioning system.
overtightening.
Avoid contact with liquid refrigerant R-134a.
When disconnecting a fitting, use a wrench on
R-134a vaporizes at approximately -25
°C
both halves of the fitting to prevent twisting of
(-13
°F) under atmospheric pressure and it will
the refrigerant lines or tubes.
freeze skin tissue.
Do not open a refrigerant system or uncap a
Never allow refrigerant R-134a gas to escape
new component unless it is as close as
in quantity in an occupied space. R-134a is
possible to room temperature. This will
non-toxic, but it will displace the oxygen
prevent condensation from forming inside a
needed to support life.
component that is cooler than the surrounding
Allow the engine to cool sufficiently prior to
air.
carrying out maintenance or serious burns
and injury can occur.
CAUTION: To avoid contamination of the A/C
system:
CAUTION: To avoid damaging the vehicle or
Keep service tools and the work area clean.
A/C components, the following precautions must
Never open or loosen a connection before
be observed:
discharging the system.
Do not add R-12 refrigerant to an A/C system
When loosening a connection, if any residual
that requires the use of R-134a refrigerant.
pressure is evident, allow it to leak out before
These two types of refrigerant must never be
opening the fitting.
mixed. Doing so can damage the A/C system.
Before charging, evacuate a system that has
A number of manufacturers are producing
been opened to install a new component or a
refrigerant products that are described as
system that has discharged through leakage.
direct substitutes for refrigerant R-134a. The
Seal open fittings with a cap or plug
use of any unauthorized substitute refrigerant
immediately after disconnecting a component
can severely damage the A/C components. If
from the system.
repair is necessary, use only new or recycled
refrigerant R-134a.
Clean the outside of the fittings thoroughly
before disconnecting a component from the
Do not remove the sealing caps from a new
system.
component until ready to install.
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