Just started leaking antifreeze on the back side of the engine. Can't really see where it originates from other than it seems to be on the driver side. The lines feeding the heater seem fine. Any ideas? The leak is pretty substancial.

 

Could be a shot manifold gasket. The back side of the engine has two cooling ports, and if the gasket failed it would be leaking back there. The intake manifold gasket is notorious for failure.

 

Intake manifold AND head gasket. This one will spell her doom unfortunatel. Thanks for getting back to me on this. She had 244,ooo+ on her though.