Hyundai Tucson 80K miles. Losing small amt of coolant
No leaks visible. No sign of funky exhaust or funny look in oil. Does not overheat. Heat
works fine. Just losing coolant. Any ideas appreciated.
Possibly a small crack in the bottom of the radiator.
If so why would it only leak when car is running and not when its just sitting?
I had one that drove me crazy. He could drive it all day and not leak and let it sit overnight and there would be 2-3 drops laying in the bottom of the fan shroud. Took me 3 times to find it with a pressure tester.
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