My sister is on leave from Georgia and just came back from her 2nd tour in Afganistan. She has an 04 Disco 2. On her R and R she came home and the temp went up and we replaced the thermostat. Problem fixed. Well now it seems that when she cranks the heat up the coolent disappears and water starts to come in on the passenger side floor. We noticed some leaks on occasion on the ground but Not sure what the deal is. We are going to get more into it tomorrow. Any Ideas? She has about 15 days till she needs to be back. Dad is a pro mechanic but does mainly old brit stuff. So just looking for thoughts. Thanks