Q: Water leaking on passenger floorboard on 2005 Honda Civic

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I have water leaking on the passenger side floorboard every time I drive lately. It hasn't been raining and I haven't been running the AC, or even the fan, so I can't see it being a problem with the AC drain hose or whatever I've been seeing as suggestions to this problem. It's also not coloured or strange-smelling like it is when people say it might be the heating core. What could this be? The car seems to be running fine, but this is a pain.
(2) Answers
(1) Comments
The A/C system can turn on automatically even though you don't push the A/C button. It's not uncommon to have the A/C drain get plugged by debris. Even though you say you are not running the A/C or turning on the fan I would check the A/C drain first just to make sure.
If you are slowly losing coolant your heater core is leaking, you need to have your cooling system pressure tested to be sure
It's not coolant. It's clear and has no smell. My coolant is green and smells very strongly.