I have a 2003 Jeep Grand Cherokee Limited, and noticed it's leaking in the front left through the front middle. There's a big, thick black hose that runs across the front which is super moist, and my guess that's where the leak is coming from. I had to add a whole gallon of coolant in (don't know the last time coolant was added) and my husband seems to think that's a problem. Does anyone know or have an estimate how much it would cost to fix a coolant leak?