Expansion Block/Orifice Tube: Service and Repair

Expansion (Orifice) Tube Replacement (Short Wheel Base)

Tools Required

* J26549-E Orifice Tube Remover
* J39400-A Halogen Leak Detector

Removal Procedure

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.
2. Remove the accumulator.




4. Remove the evaporator tube nut (3) at the evaporator (1).
5. Remove the evaporator tube (4) from the evaporator (1).




6. Remove the O-ring seal and discard.
7. Remove the nut from the evaporator tube block fitting.
8. Separate the evaporator tubes (4,6) at the block fitting.
9. Use the J26549-E in order to remove the expansion tube.
10. Remove the expansion tube from the evaporator tube (6).

Installation Procedure






Important: Install the shorter screen end of the expansion tube into the evaporator tube (6) first.

1. Use the J26549-E in order to install the expansion tube.
2. Install the new O-ring seal.
3. Assemble the evaporator tubes (4,6).

Notice: Refer to Fastener Notice.

4. Install the evaporator tube nut.

Tighten the nut to 28 N.m (21 lb ft).




5. Connect the evaporator tube (4) to the evaporator (1).
6. Install the nut (3).

Tighten the nut to 28 N.m (21 lb ft).

7. Install the coolant reservoir.
8. Install the accumulator.
9. Recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging.
10. Leak test the fittings of the components using the J39400-A.