Ford Mustang (1999-2004) Service Manual: Air Conditioning (A/C) Pressure Relief Valve - 3.8L
Material
| Item | Specification |
| PAG Refrigerant Compressor Oil (R-134a Systems) F7AZ-19589-DA (Motorcraft YN- 12-C) | WSH-M1C231- B |
Removal and Installation
1. Recover the refrigerant. For additional information, refer to Section.
2. Unlatch the breather.

3. Disconnect the mass air flow (MAF) sensor electrical connector.

4. Remove the air cleaner outlet tube.
1. Loosen the clamp.
2. Disconnect the crankcase ventilation tube.
3. Remove the air cleaner outlet tube.

5. Remove the A/C compressor pressure relief valve.
- Discard the O-ring seal.

6. To install, reverse the removal procedure.
- Install a new O-ring seal lubricated in clean PAG oil.
7. Evacuate, leak test and charge the refrigerant system. For additional information, refer to Section.
Suction Accumulator
Material
Item
Specification
PAG Refrigerant Compressor
Oil (R-134a Systems)
F7AZ-19589-DA (Motorcraft YN-
12-C)
WSH-M1C231-
B
Removal and Installation
1. Recover the refriger ...
Air Conditioning (A/C) Pressure Relief Valve - 4.6L
Material
Item
Specification
PAG Refrigerant Compressor
Oil (R-134a Systems)
F7AZ-19589-DA (Motorcraft YN-
12-C)
WSH-M1C231-
B
Removal and Installation
NOTE: Installation of a ...
Other materials:
Supercharger Cooling
General Specifications
a - Use the same type coolant that was drained from the cooling system.
Do not mix coolant types.
b - The addition of Motorcraft Cooling System Stop Leak Pellets, VC-6,
darkens Motorcraft Premium
Gold Engine Coolant from yell ...
Pinpoint Tests
PINPOINT TEST A: THE ENGINE DOES NOT CRANK AND THE
RELAY DOES CLICK
Test Step
Result / Action to Take
A1 CHECK THE VOLTAGE TO THE STARTER RELAY
YesGO to A2 .
No
REPAIR circuit 1050 (LG/VT) for an open. TEST the
system for normal operation. ...
Shift Point Road Test
This test verifies that the shift control system is operating
correctly.
1. Bring engine and transmission up to normal operating temperature.
2. Operate vehicle with transmission range selector lever in (D)
position.
3. NOTE: Shift speed ranges a ...
