K 3500 Truck 4WD V8-454 7.4L VIN J SFI (1996)
Hose/Line HVAC: Service and Repair
Auxiliary Unit
Auxiliary Evaporator Tube Location
Remove or Disconnect
1. Discharge and recover refrigerant from the system.
2. Evaporator tube from evaporator.
3. O-ring seal.
4. Evaporator tube from condenser.
5. O-ring seal.
6. Evaporator tube from auxiliary evaporator hose.
7. O-ring seal.
8. Evaporator tube.
Install or Connect
1. Evaporator tube.
2. New O-ring seal.
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Coat O-ring seal with 525 viscosity refrigerant oil.
3. Evaporator tube to auxiliary evaporator hose. Tighten evaporator tube to 24 Nm (18 lbs. ft.).
4. New O-ring seal.
-
Coat O-ring seal with 525 viscosity refrigerant oil.
5. Evaporator tube to condenser. Tighten evaporator tube to 24 Nm (18 lbs. ft.).
6. New O-ring seal.
-
Coat O-ring seal with 525 viscosity refrigerant oil.
7. Evaporator tube to evaporator. Tighten evaporator tube to 24 Nm (18 lbs. ft.).
8. Refrigerant to the system.
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Check the system for leaks.