A/C Evaporator Core Orifice Replacement Kit Installation

1. Discharge the A/C refrigerant system as outlined.

2. Remove the condenser to evaporator tube (19835) from the vehicle.

3. Locate the A/C evaporator core orifice (19D990) by the three indented notches or a circular depression in the metal portion of the liquid line.

4. Note the angular position of the ends of the condenser to evaporator tube so that it can be reassembled in correct position.

5. Cut a 63.5mm (2 1/2-inch) section from condenser to evaporator tube at A/C evaporator core orifice location. Do not cut closer than 25.4mm (1-inch) from the start of a bend in tube.

6. Flush the two pieces of condenser to evaporator tube to remove any contaminants.

7. Lubricate fitting O-ring seals with clean refrigerant oil and assemble orifice tube kit (with orifice tube installed) to condenser to evaporator tube as shown in the following illustration. Ensure flow direction arrow is pointing toward A/C evaporator core (19860) end of condenser to evaporator tube , and taper of each compression ring is pointing toward compression nut.

NOTE: The inlet tube will be positioned against the orifice tube tabs when correctly assembled.

8. While holding hex of tube in a vise, tighten each compression nut to 88-94 Nm (65-70 lb-ft) with a crow-foot wrench.

9. Assemble condenser to evaporator tube to vehicle using new green O-rings lubricated with clean refrigerant oil. Use only specified green O-rings at spring lock coupling.

10. Leak-test, evacuate and charge system following approved procedures.

11. Check system for proper operation.