After a coolant change (and a radiator, and a heater core) I had leaking from the front (small amount maybe a few ounces) and it peed out the overflow at the right rear tire (marking territory?), again a few ounces. I did the "bleeding the coolant loop" dance and all that before it happened, and made sure the coolant level was at max. Before I could tear into it to see what was going on, it quit leaking. The coolant level did go low, still above min, so I topped it up and it has not leaked since. Air in the system? Ghost in the machine?
