Sounds like head gasket is leaking allowing coolant into combustion chamber
If your talking about coolant leaking on the passenger floor then it means your heater core is leaking and needs to be replaced.
Black smoke is overly rich fuel/air mixture. Blue smoke is oil burning. White smoke is coolant in the combustion chamber. I have never seen green smoke coming from an auto exhaust. The only thing I would suspect is that this is coolant in the combustion chamber caused by a blown head gasket. If it smells sweet and you are loosing coolant with no apparent leak, then you have a blown head gasket or cracked head.
That means that rad. coolant is leaking into the combustion part of the engine, and burning, thus white smoke. Most likely the head gasket has to be replaced, and have the head checked for cracks also.
Leaking or loosing coolant? If it is leaking then where is the leak? If it is just loosing coolant with no apparent leak, then you more than likely have a blown head gasket or cracked head. If there is coolant in the oil, or white sweet smelling smoke coming from the exhaust you definitely have an internal problem. Serious engine damage will occur if you continue to drive this vehicle.
White smoke indicates a blown head gasket, the smoke is coolant burning
Could be overheated coolant or just leaked oil burning off your exhaust headers
White smoke coming from your tail pipe often indicates an issue with your coolant. The smoke comes from burning coolant. The engine sputters and white smoke is likely an issue with the head gasket.
Blue smoke, burning oil. (tired) White smoke, burning coolant. (bad head gasket) Black smoke, excess gasoline (flooding).
your heater core is leaking. this is located most the time under the dash. you will have to have it replaced
The heater core is located in the same place.If you have coolant coming from the tube,your heater core is bad and needs to be replaced.
It could be a head gasket that needs replaced or a freeze plug needs replaced depending where the leak is coming from. It could also be a radiator hose.
The sensor may be defective/broken. I would have that checked or replaced.