OK, first off I do not know anything about cars and am hoping someone can help me. I have a 95 Jeep Grand Cherokee and it overheated the other day and I had noticed it was pretty much pouring out coolant everytime the engine was hot from driving. I took it in to be repaired and they told me I had a small hole in my hose and charged me close to 300 to replace it. However, a couple of days later it overheated again. They now told me the overheating was due to a damaged thermostat. If they replaced the thermostat, will this solve the coolant leak that I have?