1999 Jeep Cherokee TESTING A/C COPMPRESSOR

Hello,

First start by looking at the front on the A/C Compressor with vehicle off pay CLOSE ATTENTION to the very front. Now start the vehicle turn or leave A/C off look at the front of the compressor. Now turn on or better have someone turn the A/C on. Does the front of the compressor start spinning?

And does is kick in and out about every few seconds. If so you are most likely just low on freon. And a charge will fix it.

If front of compressor doesn't start spinning then it could be a couple of things.

A/C Relay

Bad Low Pressure Switch

Or a bad A/C Clutch (what you were looking at on the front of the compressor)

.