Alero L4-144 2.4L DOHC VIN T SFI (2000)
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Brass orifice tube (3) damaged or plugged; replace tube
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Filter screen (1) coated with metal chips, flakes, or slivers; coating may be removed with low pressure shop air and reused if cleaned
satisfactorily
If reusing the tube, install a new O-ring (4)
INSTALLATION PROCEDURE
1. Lightly coat the new orifice tube O-ring seal (4) with mineral base 525 viscosity refrigerant oil.
2. Remove the cap or tape from the evaporator line.
3. Using needle-nose pliers, CAREFULLY grasp the edge of the expansion (orifice) tube (long filter screen (1) inlet side of tube) without touching
the filter screen and insert the tube (short filter screen (2) outlet side first) fully into the evaporator line.
4. Remove the cap or tape from the condenser line.
5. Using a lint-free clean, dry cloth, carefully clean the sealing surfaces of the line fittings.
6. Install a NEW O-ring seal on the condenser tube.
Coat the O-ring seal with 525 viscosity refrigerant oil.
NOTE: Refer to Fastener Notice in Service Precautions.
7. Install the evaporator hose assembly and the bolt to the condenser.
Tighten
Tighten the bolt to 25 N.m (18 lb ft).
8. Lower the vehicle.
9. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging. See: Refrigerant/Service and Repair
10. Inspect the system operation.
11. Perform the leak test. Refer to Leak Testing.
See: Testing and Inspection/Component Tests and General Diagnostics/Leak Testing - HVAC System - Manual
