My 2005 Pacifica
It sounds like you're ac condenser, if it was on passenger side I would say heater core but almost positive it your ac.
I took it to Firestone they came out and took a look up under,he said my ac is coming out like it suppose to and that it's not my heater core or ac cause that leaks on passenger side,so he recommended me to get my windshield reseal he said when it rain water is coming in
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