Lincoln Aviator: Climate Control System - General Information / General Procedures - Air Conditioning (A/C) Compressor Leak Detection - Vehicles With: R134A Refrigerant

Special Tool(s) / General Equipment

Leak detection

1. Recover the refrigerant. Refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging procedure in Group 412.
   

1. Disconnect the refrigerant lines from the A/C compressor. Refer to the appropriate section in Group 412 for the procedure.
   

1. Install the adapters from the A/C Flush Adapter Kit on the ports of the A/C compressor, using the existing retaining bolts.
   
   • 219-00082 ACF-3000 33PC Adapter Kit - Revised 1st released 44pc kit
     
   • 219-00083 A/C Flushing Adapter Kit 2 of 3 (Previously "Supplement A", 2nd released kit)
     
   • 219-00084 A/C Flushing Adapter Kit 3 of 3
     Use the General Equipment: Air Conditioning Adaptor Kit

1. Connect the high and low pressure lines of the air conditioning service unit to the corresponding fittings on the adapter.
   
   • 265‐37887 Ritchie R134A A/C Refrigerant Hybrid Management System
     Use the General Equipment: Air Conditioning Service Unit

1. Charge the A/C compressor following the air conditioning service unit instructions. Open the low pressure valve, the high pressure valve and set the refrigerant charge amount to 0.23 kg (8 oz).
   

1. NOTE: Use a Rotunda-approved Electronic Leak Detector for R-134a refrigerant SAE Certified to J2791.

   Using the Refrigerant Leak Detector, check for leaks at the compressor shaft.
   
   • 023‐22791 Robinair Infrared A/C Refrigerant Leak Detector w/Case
     Use the General Equipment: Electronic Leak Detector

1. When the leak test is complete, recover the refrigerant from the compressor.
   

1. If an external leak is found, install a new A/C compressor.