Take it to the shop and let them fix it for you. The part will cost about $300 and so will the labor.
The ac compressor clutch is mounted on the front of the compressor and is a replaceable part. However depending on the complexity of the clutch change out it may be overall better to change the compressor and clutch together.
thats the relay to engage the a/c compressor clutch
How do you change out a air ride compressor on a 2002 Cadillac Escalade?
It is inside the under hood fuse box.
To change the AC clutch on a 2002 Chevy Silverado, first disconnect the negative battery cable and remove the serpentine belt. Then, detach the AC compressor from its mounting brackets and disconnect the electrical connector to the clutch. Use a puller tool to remove the old clutch, and install the new one by reversing the steps, ensuring everything is securely reattached before reconnecting the battery and testing the AC system.
The ac clutch is held on with a single nut, and can be removed with a remover tool. It the tool will not fit in the space available, then the entire compressor will have to be removed to replace the clutch.
you probly need to change your belt. Addition: I have the same problem in my 2002 Xterra. It is the compressor clutch engaging/disengaging during normal opperation of the A/C system. Tightening belts will do nothing for the intermittent squealing belts on a 2002. On most vehicles, you could just change the clutch assembly .... However, not on the 2002 Xterrra. I will need to replace my whole compressor, which sucks b/c my A/C blows perfect cold air. My 2 cents.
To replace the AC compressor clutch on a 2002 V8 Chevy truck, first disconnect the negative battery terminal and remove the serpentine belt from the compressor. Then, carefully detach the electrical connector from the clutch and remove the retaining clip or bolt securing the clutch to the compressor. Use a puller tool to remove the old clutch, install the new clutch by reversing the steps, and ensure everything is properly secured before reattaching the belt and reconnecting the battery. Finally, check the AC system for proper operation.
Try jumping the two terminals of the wires which go to the low pressure switch. That's a possibility, as is low refrigerant, a bad compressor clutch, or a faulty fuse or relay to the compressor clutch.
This requires special tools to remove and install the ac clutch and bearing. The air gap on the ac clutch must be done during install.
The systems holds 266 ml (9 oz).......
I'm pretty sure the 2002 Silverado has a cycling clutch compressor, which should release the clutch to cycle off when the specified system high pressure has been reached, and cycle back on when it drops to the specified system low pressure. It should not be running at all times.