Hi, I'm in the process of purchasing a 2003 Durango. I wanted to ask the experts id it would be a good buy before purchasing. The owner said its leaking coolant and water but doesn't know where from. He said he expects it may be a rear freeze plug because he put sealant in the block and it didn't work. I asked him about the water pump and he said he thinks its still good because he replaced it about 4 years ago. Any advice? Should i buy it, and get it fixed. I just don't want to buy a car that i can't drive.