gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Relays and Modules - HVAC > < Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement
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Refrigerant Pressure Sensor / Switch: Service and Repair
Air Conditioning Cycling Switch Replacement

Air Conditioning Cycling Switch Replacement

Removal Procedure

1. Disconnect the electrical connector from the A/C low pressure switch.

2. Remove the A/C low pressure switch from the accumulator.
3. Remove the O-ring and discard.

Installation Procedure

1. Install the new O-ring seal to the switch. Refer to Air Conditioning O-Ring Seal Replacement   See: Coupler HVAC/A/C Coupler O-ring/Service

and Repair/Air Conditioning O-Ring Seal Replacement.

Caution:  Refer to Fastener Caution   See: Service Precautions/Vehicle Damage Warnings/Fastener Caution.

2. Install the A/C low pressure switch to the accumulator and tighten to 6 Nm (53 lb in).
3. Connect the electrical connector to the A/C low pressure switch.
4. Leak test the fittings of the components using the J 39400-A .

Relays and Modules - HVAC > < Air Conditioning (A/C) Refrigerant Pressure Sensor Replacement