Water in passenger floorboard

Sure sounds like it is the heater core leaking. Check the radiator as see if it is low or run your hand along the bottom of the cover for the heater and see if you can feel water on the heater core cover. Hope this helps.

leaking heater core

your heater core is leaking.

check hose connections on the htr core, did you empty the heater core box? could be left over from the old leak you had.

Sounds like the A/C condensation drain is plugged. I hope this helps!

Your drain a/c condenser is clogged; check this to solve...


Good luck (remember comment and rated this).

probably leaking heater core. you may have low coolant level now. the only place water comes in the cabin is for the heater, that has got to be it. the heater core can be bypassed (like my car's is) by simply cutting the hose that leads into the car and leave about a foot, make a big U out of it and plug the other side of the hose into the coolant passage that returns from the heater core and leads into the intake manifold. pretty easy you will need a knife, hose clamps, and common sense. the third one is a little harder to come by! :)

does it smell sweet, if sounds like you got a leaking heater core, sounds like to much for just condensation...

A check engine light means a faulty valve or sensor somewhere in the system. There are places you can go that will connect to the cars diagnostics system and tell you for sure. As for the fluid on the floorboard, the heater core has gone bad. Which means that as the anti-freeze and fluid is going through the heater system it is leaking out of the heater core which is behind the dash board. The two MIGHT be related but I doubt it. Hope it helps!

it is most likely your heater core possibly the hose connection but really its the heater core