Syclone V6-262 4.3L Turbo (1991)
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 Internal Snap Ring Pliers
J 9553-01 O-Ring Remover
1. Electrical connector at switch.
2. Switch retaining ring using J 5403.
3. Switch from compressor by pulling on terminal housing.
4. Old O-ring seal from the switch cavity using J 9553-01.
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If the high pressure cut-off switch is reinstalled in the compressor, a new O-ring seal must be used and preferably a new retainer ring should
also be used.
Inspect
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Switch cavity and O-ring groove in the rear head for dirt or foreign material and clean as necessary.
Install or Connect
Tool Required:
J 5403 Internal Snap Ring Pliers
1. New O-ring seal coated with 525 refrigerant oil. Lubricate the high pressure cut-off switch housing with clean 525 refrigerant oil.
2. Switch into switch cavity until switch bottoms in cavity.
3. Switch retaining ring using J 5403.
4. Electrical connector into the switch.