Tools Required

J 39400-A Halogen Leak Detector

1. Recover the refrigerant from the A/C system. Refer to Refrigerant Recovery and Recharging .
2. Remove the A/C pressure switch (4.3L only).



3. Remove the accumulator (2) to evaporator nut.
4. Remove the compressor hose assembly from the accumulator.
5. Remove the O-ring seals and discard.



6. Remove the accumulator clamp bolt.
7. Remove the accumulator.

1. Install the accumulator into the accumulator clamp.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the accumulator clamp bolt.

Tighten
Tighten the bolt to 10 N·m (88 lb in).

3. Install the A/C low pressure switch.



4. Install new O-ring seals. Refer to O-Ring Replacement in Heating ,Ventilation and Air Conditioning.
5. Connect the compressor hose assembly to the accumulator (2).

Tighten
Tighten the compressor suction hose to accumulator retaining nut to 48 N·m (35 lb in).

6. Install the accumulator to evaporator retaining nut.

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

7. Connect the electrical connector to the A/C pressure switch (4.3L only).
8. Evacuate and recharge the A/C system. Refer to Refrigerant Recovery and Recharging .
9. Leak test the fittings components using the J 39400-A .