K 1500 Truck 4WD V6-262 4.3L (1991)
High Pressure Safety Valve HVAC: Service and Repair
With R-4 Compressor
Compressor Component View
Remove or Disconnect
1. Valve (24).
2. O-ring (23).
Install or Connect
1. New O-ring (25).
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New O-ring should be coated with 525 viscosity refrigerant oil.
2. Valve (24)
