I have a dripping coolant leak and can't find it. Looking under the car, it seems to be dripping off the starter area. Looking at the top of the engine back near the firewall, the heater hoses go into the firewall. I see no leaks there. There are some hoses that branch off the heater hoses and go down the firewall and disappear. Don't know what those hoses are or where they go from there but I know the heater hoses are not leaking at the firewall. The leak is a dripping leak, maybe losing a quart a week but would hate to have to pull the whole engine out to find it. Anyone have any ideas? Also, anyone have any thoughts on using stop leak?