K 2500 Yukon 4WD V8-6.0L VIN U (2000)
6. Install the auxiliary A/C evaporator tubes (3) to the condenser tube (2) and the accumulator (5).
Tighten
Tighten the nuts to 16 N.m (142 lb in).
7. Recharge the refrigerant to the system. See: Refrigerant/Service and Repair