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Home >> Buick >> 1988 >> Century L4-151 2.5L >> Repair and Diagnosis >> Heating and Air Conditioning >> Refrigerant Pressure Sensor / Switch >> Service and Repair >> Pressure Cycling Switch
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Pressure Cycling Switch


2.5L (VIN R) & 2.8L (VIN W)
1. Disconnect battery ground cable, then disconnect switch lead.
2. Remove coupled hose assembly at rear of compressor (VIN W only).
3. Unscrew and remove switch unit. It is not necessary to discharge system refrigerant during this procedure, as switch unit is mounted on a Schrader valve.
4. Reverse procedure to install.