Hello everyone. I have a 94 accord lx 4 doors auto with about 144k. My car has a weird overheat problem. When I stop at a traffic light, the temperature will keep going up almost reach the red zone. As soon as it gets into motion, the temperature drop back to normal. This has been happening for a while. Today, I see some coolant leaking beneath my car. They are leaking from a huge metal compartment which located close to my front right tires. When the car cool down, it stops leaking. What is that? What is happening? Any help would be greatly appreciated.