gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Heating, Ventilation and Air Conditioning|Page 11930 > < Heating, Ventilation and Air Conditioning|Page 11928
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Accumulator HVAC: Service and Repair

ACCUMULATOR REPLACEMENT

REMOVAL PROCEDURE

1. Recover the refrigerant from the system. Refer to Refrigerant Recovery and Recharging.See: Refrigerant/Service and Repair
2. Remove the electrical connector from the A/C low pressure switch.
3. Remove the compressor hose fitting from the accumulator.
4. Remove the nut (2) from the evaporator fitting.
5. Remove the accumulator bracket nut (4) from the retaining stud.
6. Remove the accumulator (3).
7. Remove the retaining bracket bolt (5).
8. Remove the retaining bracket (6) from the accumulator.
9. Remove the O-ring seals.

INSTALLATION PROCEDURE

1. Install new O-ring seals.
2. Install the retaining bracket (6) to the accumulator.

NOTE:  Refer to Fastener Notice in Service Precautions.

3. Install the retaining bracket bolt (5).

Tighten
Tighten the accumulator bracket bolt to 10 N.m (89 lb in).

4. Install the accumulator (3).
5. Install the accumulator bracket nut (4).

Tighten

Heating, Ventilation and Air Conditioning|Page 11930 > < Heating, Ventilation and Air Conditioning|Page 11928