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From where?..Under the dash , from the sides .. Is it water or antifreeze solution. Could be leaking heater core, or even seals from roof drip, door drain holes ..etc. Need More Information.
is it inside or outside the car? sounds like the heater core if you can smell antifreeze. if dripping into flooring but no antifreeze can be a blocked ac line that is freezing up.
A bad heater core could cause a couple of isses. If it is plugged internaly you would get no heat. If it is leaking you would have anti-freeze dripping into the cab on the right side or dripping under the car in the area of the right floor board.
With the vapor coming out I would say you have a hole in one of the heater hoses which go into the firewall in the area you describe. Inspect the hoses looking for the vapor with the engine still hot.
It could also be a leak in the heater core. The vent the vapor came out of is the source for fresh air for the heater and a/c. You should be able to smell antifreeze with the heater on inside the car if the leak is there. Water may also drip on the passenger side floor from the heater core.
THE AC EVAPORATOR CORE WATER CONDENSAION DRAIN IS PLUGGED, THE DRAIN IS AT THE BASE OF THE ENGINE FIREWALL ON THE PASSENGER SIDE OF ENGINE COMPARTMENT, U WILL NEED TO GET UNDER THE VAN TO SEE IT, WILL BE ABOUT 1/2 INCH DIAMETER TUBE.
leaking heater core or hose that feeds it. look for hoses that pass thru the firewall to passenger compartment. Most times the hose is clamped to a pipe at the firewall so you may just need a hose
Probably a water pump seal unfortunately. Pressurize the system, with the engine off, use a mirror to look under the water pump pulley to see if any fluid is dripping from the water pump seal weep hole.
If it is, change the water pump.
Good luck, let me know.
Regards,
The oil leak at bottom of radiator could be oil cooler and/or supply hose. Try check closely for wettest area . The other leak could be thermostat cover, it only uses a sealing ring and is prone to leaking after time.
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