Chances are where the overflow tube connects to the radiator may have cracked. Listen, they make a pump that will pressurize the system so you can check for leaks. You may want to try that. Also, you can get a dye to put into the radiator. Drive it from a couple days and check for a leak using a black light. THe dye will glow and you can trace where it is coming from.
I hate to say it, but the tanks they use on the radiators today are plastic. Over time they either crack or where they are crimped together they get loose and come apart. Try one of the methods I mentioned. Let me know where the leak is coming from so I can help you decide if it is repairable or if it needs replaced.
I look forward to hearing from you.
Monday, November 9th, 2009 AT 6:54 PM