Ford Mustang Quiz
Climate Control System

Air Conditioning (A/C) Pressure Relief Valve - 3.8L

In this manual: Climate Control System
Service Information — 34Suspension — 63Driveline — 80Brake System — 74Steering System — 42Engine — 329Automatic Transmission — 84Manual Transmission, Clutch and Transfer Case — 64Exhaust System — 8Fuel System — 39Climate Control System — 76Instrumentation and Warning Systems — 25Battery and Charging System — 19Audio Systems — 14Lighting — 24Electrical Distribution — 8Electronic Feature Group — 11Body — 173Frame and Mounting — 6General Information — 1
~1min read

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.

Air Conditioning (A/C) Pressure Relief Valve - 3.8L

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

Air Conditioning (A/C) Pressure Relief Valve - 3.8L

4. Remove the air cleaner outlet tube.

1. Loosen the clamp.

2. Disconnect the crankcase ventilation tube.

3. Remove the air cleaner outlet tube.

Air Conditioning (A/C) Pressure Relief Valve - 3.8L

5. Remove the A/C compressor pressure relief valve.

  • Discard the O-ring seal.
Air Conditioning (A/C) Pressure Relief Valve - 3.8L

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.

Test yourself

A quick Ford Mustang quiz: every answer comes with an explanation and a link to the manual page.