Reply To: 2007 Quest A/C Compressor not engaging

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#6706

Oldman
Participant

Test the clutch by giving it 12v to the lead while the engine is running. A good clutch will start pulling. If that’s the case it’s probably low on coolant. Check for any oil seepage on the bottom of the compressor. You may not get 12v by pulling the lead because there’s a low pressure switch that will not turn the clutch on when refrigerant is low.