My truck had a small puddle of anti-freeze under it last week. It has been sitting for a couple of weeks with no issues until I noticed the puddle. After I cleaned it up, it hasn't leaked for a few days. I obviously can't find a source. What could have caused it to leak and then suddenly stop? Thanks in advance.

 

Could be a hose connection that isn't tight or seeps a little. Where under the truck was the coolant?

 

The leak is directly under the radiators. It was only a few ounces. I drove the truck today and parked it but haven't noticed a leak. The radiator cap is secured and I'm baffled. You'd think a loose hose would keep leaking.