buick Workshop Repair Guides

Buick Workshop Service and Repair Manuals

Heater Core > < Expansion Block/Orifice Tube|Service and Repair
Page 2
background image

1. Install the new O-ring to the evaporator hose.
2. Install the new expansion tube.

IMPORTANT:  Ensure that the short screen and arrow face the evaporator.

3. Connect the evaporator hose.

Tighten the fitting to 24 N.m (18 lb ft).

NOTE:  Refer to Fastener Notice in Service Precautions.

4. Position the evaporator hose to the accumulator cover and press to engage.
5. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging.
6. Leak test the fittings of the A/C component using the J 39400-A.

Heater Core > < Expansion Block/Orifice Tube|Service and Repair