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Home >> Buick >> 1985 >> Electra V6-260 4.3L DSL >> Repair and Diagnosis >> Heating and Air Conditioning >> Refrigerant Pressure Sensor / Switch >> Service and Repair
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Refrigerant Pressure Sensor / Switch: Service and Repair


1. Disconnect negative battery cable. Under normal conditions, it is not necessary to discharge system refrigerant during this procedure, as switch unit fitting is supplied with a Schrader valve.
2. Disconnect switch harness connection. Unscrew unit from accumulator.
3. When installing new switch unit, install new oiled O-ring and torque switch to 7.5 ft. lbs. Be careful not to over tighten switch.
4. Reconnect harness and battery cable.



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