I have a 1997 nissan sentra that has had its share of problems lately. For instance, there is a noticeable leak near the oilpan which happens to be antifreeze. im not sure if it is coming from the water pump or not, because i have to put just a tad bit of water in it every day. not much. but still a noticeable amount of leaking occurs after driving it. also, a little squeaking sound comes from the back of the car while driving it, and that is an intermittent sound. what is the problem? the belts squeak too, i cant really afford to get the car fixed anymore because i have had it in the shop like 4 times. i know i should just get a new car, but i cant afford that either. help!