your a/c compresore is bad
Start out by checking the freon levels and if that is okay then check the pressure switches and the wire harness to the clutch....
The clutch bearing for an AC compressor is located in the center of the clutch. If the bearing goes bad, then the clutch is replaced as a whole part rather than changing the bearing.
low on freon
It happens in normal operation. Most vehicles have a cycling clutch system, which cuts off and on within a specified system pressure range. When the pressure gets to the high point, it cuts off, then cuts back on when the pressure gets to the low point.
the clutch engages a compressor that goes on and off to keep a particular setting.for example if there is not enough freon in the ac the clucth will keep running and clicking on and off
The ac pressure cycling switch is designed to engage or dissengage the clutch to keep the proper pressure in the system.
It is on the acumulator.
I think it means that the AC belt is slipping, AC clutch is failing or freon pressure is low. But I might be wrong.
Most automotive AC compressors use a cycling clutch compressor, where the clutch is engaged by pressure switches which will engage the compressor clutch when the pressure reaches a predetermined low level, and disengages it when it reaches a predetermined high pressure.
the ac slows the engine, the lower idle causes the lower oil pressure
To change the AC clutch on a 2003 Ford F350, first, disconnect the negative battery cable and relieve the AC system pressure. Remove the serpentine belt and the bolts securing the clutch to the compressor. Carefully pull the old clutch off the compressor, then install the new clutch by aligning it properly and securing it with the bolts. Finally, reattach the serpentine belt, reconnect the battery, and check the AC system for proper operation.
It is a low pressure AC clutch cut out switch. It keeps the compressor from running if the system is low or empty of freon.