Accumulator HVAC: Service and Repair
ACCUMULATOR REPLACEMENTTOOLS REQUIRED
J 39400-A Halogen Leak Detector
REMOVAL PROCEDURE
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.
INSTALLATION PROCEDURE
1. Install the accumulator into the accumulator clamp.
NOTE: Refer to Fastener Notice in Service Precautions.
2. Install the accumulator clamp bolt.
Tighten
Tighten the accumulator clamp bolt to 10 N.m (88 lb in).
3. Install the A/C low pressure switch.
4. Install new O-ring seals.
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 accumulator to evaporator retaining 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.