Why is antifreeze coming out of the exhaust? What can I do?
First, you're positive that it's coolant? Green and matches the stuff in your radiator? I ask because you will have a certain amount of condensation developing in the exhaust pipe and this increases in cold weather so it may look like a bunch of water is coming out when it's just normal condensation.If you're sure it's coolant, your vehicle should also be running poorly as that means your head gasket is blown and coolant is getting into the cylinder(s). Coolant in the cylinder is very bad and you should stop operating the vehicle immediately or risk further (more expensive) damage.