Hi all - got a weird one. Replaced my coolant expansion tank months ago with a Lucky8 one, but ever since then - most of the time after I drive the car, I'll see a small quarter to half dollar size puddle of coolant on the ground by the driver's side CV joint/splash guard...but only after the car is sitting with the ignition off...it doesn't leak when the car is running. The car doesn't overheat. A/C and heat work, not hearing any gurgling sounds. After removing the under shields, I am still not able to pinpoint where this small leak is coming from.

Any ideas of where to look?

 

Get a pressure tester on it and put 16PSI on the system. You should find the leak.