Assuming you mean under the front of the car, the water pump, hoses or radiator could be At Fault.
Coolant leaking from the heater core.
Heater core / hose leaking.
The heater core has failed and is leaking engine coolant.
what fluid is leaking from the tube.is it coolant water or deisel?
your heater core is bad
could have a crack in it that is leaking under pressure
A leak from any water hose or the water pump, or even a freeze plug may be dripping down the side of the engine, making it appear it is a leak from under the engine. You need to get under the vrhicle to find exactly where the coolant is leaking from.
only if the gasket under thermostat is leaking and may-be it's the hose clamp on the hose that is leaking
There are hoses, gaskets amd water pump which cause leaking. Check it out where the coolant is comming from.. The speed sensor is probablu bad.
Could be "Dex-Cool" engine coolant.
probaly lost a bolt or over heated
If it's leaking under the front of the water pump, it's probably the water pump.