Ford Mustang (1999-2004) Service Manual: Climate Control System (Diagnosis and Testing)
Refer to Wiring Diagrams Cell 54 , Air Conditioner/Heater for schematic and connector information.
Special Tool(s)
![]() |
Connector, Refrigerant Pressure Line 412-093 (T94P-19623-E) |
![]() |
Set, A/C Fittings 412-DS028 (014-00333, D93L- 19703-B) or equivalent |
![]() |
Vacuum Pump Kit 416-D002 (D95L-7559-A) or equivalent |
![]() |
Breakout Box, EEC-V Control System 418-049 (014-00950, T94L-50- EEC-V) |
![]() |
Worldwide Diagnostic System (WDS) 418-F224, New Generation STAR (NGS) Tester 418-F052, or equivalent diagnostic tool |
![]() |
Pressure Test Kit 014-R1072 or equivalent |
![]() |
77 III Automotive Meter 105-R0056 or equivalent |
![]() |
R-134a Manifold Gauge Set 176-R032A or equivalent |
![]() |
Refrigerant Leak Detector 216-00001 or equivalent |
Vacuum Schematic-Manual Climate Control System



Function Selector Switch Vacuum Connector


Function Selector Switch Vacuum Application Chart

V=Vacuum
NV=No Vacuum
System Air Flow Description
MAX A/C
When MAX A/C is selected:
The air inlet door vacuum control motor is at full vacuum, closing
off outside air and admitting
only recirculated air.
The panel/defrost door vacuum cont ...
Inspection and Verification
1. Verify the customer's concern by operating the climate control system
to duplicate the condition.
2. Inspect to determine if one of the following mechanical or electrical
concerns apply:
Visu ...
Other materials:
Fuel Injectors
Removal
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 can ignite. Failure to follow these instructions can result in personal
in ...
Assembly
1. Install the valve stem seals.
2. Install the valves and the valve springs.
3. CAUTION: Make sure the tool is seated correctly on the valve spring.
Apply a small
amount of air at a time. This will prevent the tool from shifting and causing
damage to
the ...
Exhaust Manifold to Exhaust Gas Recirculation (EGR)
Valve Tube
Removal and Installation
NOTE: 3.8L shown, 4.6L (2V) similar.
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Disconnect the exhaust gas recirculation (EGR) valve tube from the
exhaust manifold.
3. Remove the differential feedback exhaust ga ...









