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check to see if you have enough low side freon pressure and/or if the low pressure switch is working. bypass switch by crossing the wires of the switch with a paperclip to apply trigger voltage to the coil on the compressor,also check to see if there is voltage going to the low pressure switch,if these measures don't work,disconnect the high pressure switch to see if that switch is stuck and shutting off power thru the relay.

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โˆ™ 2009-07-03 04:36:00
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Q: Your air conditioning compressor on a 1996 Lincoln town car wont cut in but the clutch turns freely by hand?
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How is the compressor clutch engaged on the air con system?

When not engaged, the wheel spins freely. When the low pressure switch closes, it closes the electrical circuit to the compressor clutch. This actuates an electromagnet, which pulls the clutch in to engage it.

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