Air Conditioning (A/C) Pressure Relief Valve

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.

MATERIAL SPECIFICATIONS

Item	Specification
Motorcraft® PAG Refrigerant Compressor Oil YN-12-D	WSH-M1C231-B

Fig 1: A/C Pressure Relief Valve And O-Ring Seal With Torque Specifications

Courtesy of FORD MOTOR CO.

Item	Part Number	Description
1	19D644	A/C pressure relief valve
2	-	O-ring seal (part of 19D644)

Recover the refrigerant. For additional information, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS .
Remove the A/C compressor pressure relief valve and O-ring seal.
- To install, tighten to 10 Nm (89 lb-in).
NOTE: A new O-ring seal will already be installed on the new A/C pressure relief valve service part.

To install, reverse the removal procedure.
- Add the correct amount of clean PAG oil to the refrigerant system. For additional information, refer to the REFRIGERANT OIL ADDING .
Evacuate, leak test and charge the refrigerant system. For additional information, refer to CLIMATE CONTROL SYSTEM - GENERAL INFORMATION AND DIAGNOSTICS .