Section 12-03A: Air Conditioning System—Manual A/C-Heater
1994 Mustang Workshop Manual
SPECIFICATIONS

Specifications



Refrigerant System Components and Capacities
A/C Compressora A/C Cyclic Switchb A/C Evaporator Core Orifice Refrigerant Capacity
FS-10 Oz. Kg.
X X X 34 0.964
a Air gap spec for A/C compressor is 0.35-0.85mm.
b A/C cyclic switch opens at 169 kPa (24.5 psi) for all engines.


Refrigerant System
Description Specifications (Ford Part Number)
A/C Cyclic Switch Close Max. 47 psi (324 kPa)
Open Max. 23 psi (159 kPa)
A/C System Fluids
R-134a Refrigerant WSH-M17B19-A (Motorcraft YN-11)
A/C Compressor Oil WSH-M1C231-B (Ford F2AZ-19577-AB, Motorcraft YN-12)



Electrical System






Cavity Number Fuse Rating Color Circuit Protected
1 15 Amp Light Blue
  • Turn Signal Lamps
  • Turn Signal Cluster Indicator Lamp
  • Back-Up Lamps
  • Air Bag Diagnostic Monitor
  • DRL Module, IGN Power
  • Illuminated Entry Actuator Shut Off Power
  • Heated Back Window Control Relay Coil in Switch
  • Convertible Top Relay Coil
  • Heated Back Window Defrost Relay Coil in Switch
  • Transmission Control Switch
  • Brakeshift Interlock Signal Feed
2 30 Amp Light Green
  • Windshield Wiper—High
  • Washer Pump
3 Not Used
4 10 Amp Red
  • Air Bag Diagnostic Monitor
5 15 Amp Light Blue
  • Warning Chime (Headlamp On)
  • Clock
  • Front Park Lamps
  • Rear Tail Lamps
  • License Plate Lamps
  • Rear Side Marker Lamps
  • Fuse 13
6 15 Amp Light Blue
  • Clock—Display
  • Speed Control Amplifier
  • Warning Chime Module
  • A/C Clutch Coil
  • Door Lock Control Processor
  • Anti-Theft Alarm Control
7 10 Amp Red
  • Anti-Lock Brake Control Module
  • Low Oil Relay
8 10 Amp Red
  • Power Mirror Motor
  • Radio Memory
  • Courtesy Lamp Switch (Door Open Signal)
  • Clock Operation
  • Door Lock Control Processor Battery Save/Power
  • Dome Lamp
  • Map Lamp
  • Luggage Compartment Door Lamp
  • Visor Vanity Lamps
  • Engine Compartment Lamp
  • Glove Compartment Lamp
  • Warning Chime (Key-In/Headlamp On)
9 15 Amp Light Blue
  • Hazard Lamps-Front
  • Hazard Lamps-Rear
  • Hazard Cluster Indicator Lamps
  • Stop Lamps
  • High Mount Rear Lamp
  • Brakeshift Interlock Solenoid
10 20 Amp Yellow
  • H02S Sensors (5.0L)
11 15 Amp Light Blue
  • Radio
12 20 Amp C.B.
  • Luggage Compartment Door Remote Control
  • Door Lock Control Processor
  • Power Door Locks
13 10 Amp Red
  • Clock Illumination
  • Radio Illumination
  • Heated Back Window Switch—Illumination
  • Instrument Cluster Illumination
  • A/C Heater Control Illumination
  • Transmission Range Indicator Lamp Illumination
  • Ash Receptacle Lamp Illumination
  • Fog Lamp Switch—Illumination
14 20 Amp
C.B.
  • Power Windows
15 10 Amp Red
  • Air Bag Indicator Lamp
  • Air Bag Diagnostic Monitor
  • Low Oil Relay
  • Fuel Gauge
  • Temperature Gauge
  • Instrument Gauge Amplifier Module
  • Transmission Control Indicator Lamp
  • Malfunction Indicator (Check Engine) Lamp
  • Speedometer
  • Anti-Theft Lamp
  • Gauge
  • Oil Gauge
  • Low Oil Level Lamp (5.0L)
  • Tachometer
  • Anti-Lock Brake Indicator Lamp
  • Parking Brake Lamp
  • Low Coolant Lamp (5.0L)
  • Low Coolant Switch (5.0L)
  • Seat Belt Warning Lamp/Chime
16 20 Amp Yellow
  • Headlamp Flash-to-Pass
  • Anti-Theft Alarm Control Module
17 30 Amp Light Green
  • AC-Heater Blower Motor
18 20 Amp Yellow 3.8L
  • CCRM Power
  • Ignition Coil
  • Charging System Warning Lamp
  • Regulator Signal
5.0L
  • CCRM Power
  • Ignition Coil
  • Charging System Warning Lamp
  • Transmission Control Switch Module
  • Ignition Control Module
  • Regulator Signal



Spring Lock Coupling Components
Part Number Description
391302-S100 O-Ring Seals 3/8 inch
391303-S100 O-Ring Seals 1/2 inch
391304-S100 O-Ring Seals 5/8 inch
391305-S100 O-Ring Seals 3/4 inch
E1ZZ-19E576-A (YF-990) Garter Springs 3/8 inch
E1ZZ-19E576-A (YF-991) Garter Springs 1/2 inch
E35Y-19E576-A (YF-1134) Garter Springs 5/8 inch
E1ZZ-19E576-A Garter Springs 3/4 inch
Service Kits
E35Y-19D690-D Contains 391302, 391303, 391304, 391305 O-Ring Seals.
E35Y-19D690-D E1ZZ-19E576-A & B and E35Y-19E576-A Springs



Torque Specifications
Description N-m Lb-Ft
A/C Clutch Retaining Bolts 20-30 14.8-22.1
A/C Manifold and Tube to A/C Compressor Bolt 17-23 12.5-17.0
Refrigerant Hose Fittings
Suction Accumulator/Drier-to-Compressor Hose (at A/C Compressor) 28-36 21-26
A/C Compressor-to-Condensor Discharge Line (at A/C Compressor) 20-27 15-19
A/C Cyclic Switch to Accumulator Nipple Hand Tighten
Condensor-to-Evaporator Tube (at A/C Evaporator Core) 15-18 12-13
Suction Accumulator/Drier (at A/C Evaporator Core) 28-36 21-26
Suction Line at Accumulator 28-36 21-26
A/C Condenser Core Bracket to Radiator    
Support (Screw) 8-14 6-10
A/C Evaporator Core Orifice 88-94 65-65
A/C Condenser Core to Bracket (Nut) 16-24 12-17
Heater Water Hose Clamps 1.8-2.5 16-22 (Lb-In)