your heater core is probably gone
If a leak exists, there should be green or red fluid leaking from just under the nose of the car. It is possible that the engine must be running for the leaking to occur, but this is not always the case.
It could be water pump, leaky radiator, hoses, head gasket, or just about anywhere else that the coolant circulates. You'll need to get under and find out where it's leaking.
easiest way is to fill radiator and look and see where fluid is coming out, but Im sure you thought of that. The best way is to plug the ends of the radiator up with some type of rubber stopper then insert blow air through the drainport while holding it under water. Wherever the bubbles are coming from is where its leaking.
there is a hole in the heater core, under the dash.
maybe your radiator is broken and you need to get a new one or just get a reparation if the radiator starts leaking when is in use it may be leaking because of the pressure of the water.
red fluid is transmission fluid and could be leaking from several locations around the transmission. Check the cooler lines where they go into the radiator, the seals where the axles go into the transmission, but most likely is a leaking pan gasket, etc. The only good way to find it is to look under the van and see where the wet spot is located
trans fluid,power steering fluid,dex-cool antifreeze
The starter and cillanoid are one. They are located directly under the radiator.
under the hood on the passanger side in front of radiator
what fluid is leaking from the tube.is it coolant water or deisel?
At the end of the top radiator hose in the housing under the throttle plate.
it is located under the throttlebody just follow the upper radiator hose