gmc Workshop Repair Guides

GMC Envoy Workshop Service & Auto Repair Manuals

Relays and Modules - HVAC > < A/C High Pressure Cut-Out Switch|Page 9612
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Refrigerant Pressure Sensor / Switch: Service and Repair
Pressure Cycling Switch

Removal Procedure

1. Raise and suitably support the vehicle. 
2. Disconnect the A/C control switch connection.
3. Remove the A/C control switch.

Installation Procedure

Important:  Counterhold the compressor/condenser hose using a wrench.

1. Install the A/C control switch:

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Use new O-rings.

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Lubricate the new O-rings using mineral oil, 525 viscosity.

Tighten
Tighten the A/C control switch to 7 N.m (62 lb in).

2. Connect the A/C control switch connector.
3. Lower the vehicle.

Relays and Modules - HVAC > < A/C High Pressure Cut-Out Switch|Page 9612