Body VIN 6 / GMT 370

EXPANSION (ORIFICE) TUBE REPLACEMENT (BODY VIN CODE 6)

TOOLS REQUIRED
- J 26549-E Orifice Tube Remover
- J 39400-A Halogen Leak Detector

REMOVAL PROCEDURE
1. Recover the refrigerant.
2. Remove the accumulator.
3. Remove the coolant reservoir.







4. Loosen the evaporator tube nut (5) from the evaporator.
5. Remove the evaporator tube from the evaporator.







6. Remove the nut (2) from the evaporator tube block (3).
7. Separate the evaporator tube at the block fitting (3).
8. Use the J 26549-E in order to remove the expansion tube (4).
9. Remove the O-ring seal and discard.
10. Remove the expansion tube (4) from the evaporator tube (1).


INSTALLATION PROCEDURE







1. Install the expansion tube (4) to the evaporator tube (1).

IMPORTANT: Install the shorter screen end of the expansion tube into the evaporator tube first.

2. Use the J 26549-E in order to install the expansion tube (4).
3. Install the new O-ring seal.
4. Assemble the evaporator tube at the block fitting (3).
5. Install the nut (2) to the evaporator tube block (3).Install the evaporator tube nut.

NOTE: Refer to Fastener Notice in Service Precautions.
Vehicle Damage Warnings

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







6. Install the evaporator tube to the evaporator.
7. Install the evaporator tube nut (5) to the evaporator.

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

8. Install the coolant reservoir.
9. Install the accumulator.
10. Recharge the refrigerant system.
11. Leak test the fittings of the components using the J 39400.