I recently flushed and refilled my cooling system, having been surprised by overheating. I inspected the system for leaks and didn't find any. Last night, when weather was cool by the lake, I put the heater on. A little while later I noticed dripping under the car. It seemed to come down from behind the engine, in the middle and near the cat converter.
This morning I wanted to trace the leak. I put the heater on, ran the engine to normal temperature and heated up the inside. In spite of this testing, I do not see any dripping now. Is there a wise man out there for me? The coolant has been in the normal range.