Hi, I returned from a short drive today and noticed a pin sized hole in the upper front of my radiator. An equally small spray of coolant was almost misting out of it!!! Yikes. I'm a new FJ40 owner (1978) and am not sure what to do about this. Can a tiny hole like this one be fixed or do I need to replace the whole thing? I let it cool down for a little bit and the leak stopped after about 10 minutes or less. I assume I should not drive it. Do I need to drain it and remove it? Please help, I just got it and it is now sitting. ??? Thanks a lot for any advice about this. I beleive it is a 4 core radiator from a place called "desert cool."