2002 AC gets cold then Compressor Shuts off

02 v6 4wd auto

July is gotta fix the AC month! Plus Long hair Shepard can't stand a hot back seat!

Not sure where to start. Gauges say 50lb low & 200lb high with the compressor running. AC Runs cold at idle.
If I raise the RPMs over 1000 the compressor shuts off, then warm air. AC stays off.

Yes the AC fan comes on and off when the compressor is on.

I'll push or tap the AC Clutch by hand and the clutched engages the compressor and makes cold air again for a short time.

When the clutch is running it doesn't look like its slipping. With the engine off I can easily turn the compressor by hand.

Swapped out relay no change.

I measured voltage at the clutch connection. The black clutch wire with white stripe has voltage until the clutch disengages. So something is turning off the clutch.

** I just shorted the Low Switch and the clutch stays energized. Then it started to make friction sparks and was slipping.

I'm ordering a new Clutch kit and might have to evacuate & charge to see if the low switch will keep the clutch engaged.

Oh no here comes the Parts Cannon!!

Thanks

Recharging the refrigerant and fitting a new clutch should help.
There are shims that have to be fitted to the clutch assembly to get the correct gap!

Hope you did not run the engine for too long with clutch engaged as running with low refrigerant can destroy the compressor!

Thanks for the reply Billwill

There was plenty of Freon there. I guess I'll have to wait for the new clutch install to proceed with the troubleshooting & repair.


Since nobody carries the Clutch Kit by itself I have to wait a week for the parts.