You have to determine the source of the leak then decide on how to fix it.
It is not the heater core but rain water,near the hood hinge on the passenger side;they is a "cave in" area that trap water and in the middle they is a ruber plug that seem to leak. silicone fix the problem for a few day,now I'm back to square 1 and the leak is back.
You need to identify the leak before you can fix it.
i have leak in my back break[break drum]on my passenger side,how do i fix it
i have leak in my back break[break drum]on my passenger side,how do i fix it
This is from the seal around the vent on the outside portion of the panel. Check the seal and use some silicon to fix it up.
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.
There is a conditioning system drain hose. Eventually it starts to leak inside of the car. Fix the hose.
If the exhaust leak is allowing the fumes to come into the passenger compartment of the vehicle then you could very well get carbon monoxide poisoning. Very bad headaches, dizzyness, nausea, apathy, loss of consiousness which will cause an accident, and from prolonged exposure without relief; death. Fix the leak. If it is not coming into the passenger compartment then it will cause excessive noise and probably get you a ticket. Fix the leak.
You don't fix the leak on the water tower. It is not part of the island quest.
Water pan is not something that I am familiar with, but if you are getting water on the floor on the passenger side then your heater core may be leaking, the drain tube for the ac is blocked ( it sticks out through the firewall on the passenger side and can be cleaned out with a coat hanger or compressed air).
We need more info. Determine the source of the fuel leak then re-post the info.