I have sprung a leak in y Honda 89 accord. The leak is in a line feedinga small approximately 2 inches wide radiator in front of and at bumper level to the radiator main one. The Manual does not show what function it servs aND THE METAL PIPE IS 1/2 OR SO INCHES DIAMETER it is a pin hole leack shooting out about 15 inches from a pinhole in this metal pile feeding a cooling grill about 2 inches in diameter wity the pipe being fed someplace. I bought a radiator aluminum powder stop leakage tube I will install on the 31st of Jan. to day is 30 Jan 06 Any ideas what this line does?