I have the weirdest coolant leak issue. It only leaks 2 twice a week and after running and driving then shutting off. It look like its coming behind a freeze plug or water pump but its ruining and dripping down the side of oil pan. When I pressurize the system and try and make it leak, The system will not leak. This is the craziest thing I have ever seen. Has anyone had this issues? If so could you tell me whats going on so I can fix this crazy problem.
Thanks

 

Front of the engine, or rear?

 

Get some cooling system dye and a UV light - sometimes it is the only way to find the source of weird leaks

 

Either water pump weeping hole or timing chain cover / oil pump. Very common places where a leak develops and hard to find. Watch the Atlantic British video on oil pumps. He points out the weak spot

 

If it is the weep hole, time to replace it...

 

It will not just leak it dumps out a lot at one time. Then it will not leak any more in a few days. all most like reliving pressure.

 

that would be coming out of your coolant tank cap pressure relieve change cap and thermostat

 

Coolant tank cap is not leaking the leak is coming from underneath somewhere it’s either behind the freeze plug or somewhere around that water pump