[KimMG]

Coolant from the exhaust is a blown headgasket. I have heard of people using bars leak or other products to temporalily stop the leak with success. Are you mechanically inclined? Look at a repair manual and see what is involved in replacing the headgasket yourself.

Repair manuals are available for purchase from a wide variety of sources. If you do not wish to purchase one yet, check your local library. Also schools and libraries subscribe to online databases that may include automotive manuals. They can be accessed from home using a student ID or library card number.
autozone.com may also have a basic repair guide available