C 3500 Truck 2WD V8-454 7.4L VIN J SFI (1999)
Tighten
Tighten the evaporator tube to 24 N.m (18 lb ft).
8. Coat the new O-ring seal with 525 viscosity refrigerant oil.
9. Install the new O-ring seal.
10. Connect the evaporator tube to the evaporator.
Tighten
Tighten the evaporator tube to 24 N.m (18 lb ft).
11. Charge the system. Refer to Refrigerant Recovery and Recharging See: Refrigerant/Service and Repair
12. Inspect the system for leaks. Refer to Leak Testing. See: Testing and Inspection
