Supersedes Technical Service Bulletin Group 87 number 15-60 dated March 20, 2015. The air conditioning does not cool, or the cooling performance is very weak and/or The air conditioning system cools, but the compressor is noisy. The noise is characterized as a grinding or groaning noise. Either symptom may be intermittent. No DTCs are stored. The condition may be caused by a faulty N280 valve. The internal components of the valve can be obstructed and incapable of full function. This loss of refrigerant regulation from N280 can cause noise from the A/C compressor and/or affect the HVAC cooling.
