K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Refrigerant Pressure Sensor / Switch: Service and Repair
High-Side-High Pressure Cut Off Switch
R-4 COMPRESSOR
Compressor Component View
Remove or Disconnect
Tools Required:
J 5403 Snap Ring Pliers
J 9553-01 O-Ring Remover
1. Protective cap.
2. Retainer ring using J 5403.
3. Switch by pulling on the terminals.
4. O-ring from the switch cavity using J 9553-01.
Install or Connect
Tool Required:
J 5403 Snap Ring Pliers
1. New O-ring coated with 525 refrigerant oil.
2. Refrigerant oil in the switch cavity.
3. Switch in the cavity.
4. Retaining ring using J 5403.
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The high point of the curved sides must be next to the switch housing.
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The retaining ring must be seated in the ring groove.
