gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Compressor Pressure Relief Valve Install|Page 8239 > < Heater Hose Replacement - Inlet|Page 8234
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High Pressure Safety Valve HVAC: Service and Repair
Compressor Pressure Relief Valve Install

TOOLS REQUIRED

J 41790 Compressor Holding Fixture

1. Clean the pressure relief valve seat area of the rear head.
2. Lubricate the O-ring of the new pressure relief valve with clean 525 viscosity refrigerant oil.

NOTE:  Refer to Fastener Notice in Service Precautions.

3. Install the new pressure relief valve into the compressor.

Tighten
Tighten the compressor pressure relief valve to 9 N.m (80 lb in).

4. Remove the compressor from the J 41790.
5. Install the A/C compressor to the vehicle.

Compressor Pressure Relief Valve Install|Page 8239 > < Heater Hose Replacement - Inlet|Page 8234