check to see if there is an in-line fuel filter located in that area on the chassis rails if not follow fuel trail and you will find leak if no in-line filter, it is either a loose connection, or a cracked fuel pipe
I would check the hoses leading into your radiator, and also the overflow for antifreeze. If that is not the problem, it could be your heater core. Your heater core might be leaking, you might have a hose leaking
From the same port you would charge the front ac this is under the hood on passenger side of vehicle. John
I'm assuming your grand am has a 3400 v6 which are known for intake and head gaskets leaking. so its possible that one of those gaskets are leaking so bad that coolant is leaking from intake/heads down onto your valvetrain and then down into your oil pan. more than likely its your intake gaskets leaking.
I dought it is the a/c leaking there, It is probably a leak in the cowl or windshield. Get inside with a flash light and have someone spray the out side with a hose and see where it is comming in. if it is leaking antifreeze it is a bad heater core
look for wet areas on lines at the o ring fittings.
the ac drain is stopped up locate under hood on passenger side on fire wall
It can be one of 3 things. My first guess would be a leaking heater core considering the area where it is leaking. Are you sure this is water and not coolant. If it tastes sweet or is slick to the touch, it is coolant and you have a leaking heater core that must be replaced. Secondly it can be the windshield seal that is leaking. And 3rd it may be that the drain holes below the windshield cowl are stopped up allowing water to enter the passenger compartment.
If you have your air conditioning running it is the moisture that is pulled out of the air when it is being cooled. That water is then expelled outside of the car
If it's the front passenger side ,I would say your heater core is leaking .
It wasn't an impala, but I had a car that leaked and would fill the floorboard on the passenger side. It was due to a drain that was plugged with dirt, leaves, etc. that ran down from the windshield and would normally drain out under the car.
This would be caused by a leaking heater core, or a leak in the plumbing associated with it.
If it is leaking under the truck it is not the heater core that is leaking. It would leak inside the vehicle on the passenger side. There is a drain tube for the A/C that is under the vehicle on the passenger side, and water from that with the A/C on is normal. If it is coolant, check the heater hose connections at the firewall. If you find that the heater core is actually leaking, replace it. No other repair is permanant.
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.
Leaking from the water pump at the back on the passenger side.
your heater core is leaking i would replace it.
leaking heater core. need to replace it asap, and in the mean time keep an eye on your coolant level
drain for the air conditioner heater case could be stopped up,or a heater core leaking... !!!!