1997 Dodge Neon 2.0 SOHC. It has been loosin coolant i noticed. So i parked it in my pull barn and put a piece of cardboard under neath it. But when i was backing out my girlfriend seen spots of green coolant on the underneath passanger side. Where could it be from? It has a new water pump 20k miles ago. And about 5 months ago the radiator was replaced with the hoses. So what can this be? Thanks.