I just was informed by my Toyota dealer the a critter has gnawed at the evaporator hose and causing it to leak. It is not covered by the warranty. I was told that the entire gas tank would have to be replaced, instead of just the short plastic hose. They quoted a price of $850. I think this is a major ripoff. I have never heard of any car that a hose could not be replaced. Nnyone ever had a problem like this ?