2006 Liberty - Odd AC Issue

HeyITried said:

So, the air conditioning doesn't work on my 2006 jeep liberty, 3.7L.

When I hit the air conditioning button on the hvac control, the radiator cooling fan kicks on, and stays on until the jeep it turned off. But, the compressor doesn't kick in.
I've tried to jumper the low pressure switch, but there is this 4 prong wire connector on the high pressure side.

I can turn off the ac, but the fan stays running.

Anyone run into this before?

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Billwill said:

Do you see/hear the AC clutch engaging.....when the clutch engages you will see the compressor input shaft rotating.

You can remove the AC relay in the box under the hood and briefly jumper female pins in the open socket 30 and 87 together to see if the clutch engages and the compressor rotates. I say briefly as running the compressor with possible low refrigerant will damage the compressor.

This will prove if the clutch is actually working so the problem is most likely low refrigerant.

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HeyITried said:

The ac clutch does not engage at all.
And jumpering the relay did nothing, the clutch still never engages.

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