chevrolet Workshop Repair Guides

Chevrolet Workshop Service and Repair Manuals

High Pressure Safety Valve HVAC|Service and Repair|Page 7374 > < Heater Hose Replacement - Inlet|Page 7370
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High Pressure Safety Valve HVAC: Service and Repair

COMPRESSOR PRESSURE RELIEF VALVE REPLACEMENT

TOOLS REQUIRED

J 39400-A Halogen Leak Detector

REMOVAL PROCEDURE

1. Recover the refrigerant. Refer to Refrigerant Recovery and Recharging.

2. Raise and support the vehicle. Refer to Vehicle Lifting.

IMPORTANT:  Cap or tape the open A/C components immediately to prevent system contamination.

3. Remove the high pressure relief valve.
4. Cap or tape the A/C compressor.

INSTALLATION PROCEDURE

1. Remove the cap or tape from the A/C compressor.

2. Lubricate the O-ring on the high pressure relief valve. Refer to O-Ring Replacement.

NOTE:  Refer to Fastener Notice in Service Precautions.

3. Install the high pressure relief valve.

Tighten
Tighten the valve to 8 N.m (70 lb in).

4. Lower the vehicle.

High Pressure Safety Valve HVAC|Service and Repair|Page 7374 > < Heater Hose Replacement - Inlet|Page 7370