Sounds like heater core is leaking
you probably need a new thermostat, remove the one you have then get a new one asap.
Water in the passenger side of the dashboard means the evaporator core is leaking. This needs to fix quickly as it will cause the inside of the car to be filled with water.
If it is water it is probably the condensation drain plugged up with crud. If it is engine coolant it is probably the heater core leaking.
your windshield seal has failed
either ac drain is clogged or heater core is leaking
because the air condition is cooling the air! The colder air gets, the less water it can keep. So the water drips out of the box, where the air is cooled.
Sounds like either the windshield seal if defective or the heater core is leaking Check to see if water? is antifreeze
bypass the heater core by connecting the two heater hoses togethetr or replace heater core
The pipe that runs under the back rear of the passenger side of a 196 Pontiac Grand Am is the water pump. If there is leaking under the passenger side, the first thing to check is the water pump.
Probably on the passenger side, under the glove box. The heater core is leaking, you should probalbly smell something sweet with the car running. That's the anti freeze.
Passenger's side? Could be a leaking heater core