The catalytic converter on a 2007 Mazda RX-8 is full of engine coolant. Is there any way this can be saved or do I need a new cat? It seems to me that coolant won't melt the cat like unspent fuel or oil would, And water molecules pass through here all the time. The big worry for me is the anti corrosion stuff in the anti freeze, and how it reacts with platinum/paladium/ceramic,etc.
I was thinking maybe wash it out (pressure washer? Distilled water? soap? hold it out the window going 150? joking) and let it dry. I'd like to re-use this thing if at all possible; cats are expensive.
EDIT: I just ran the garden hose through it for a few minutes, both directions and let it sit in the sun for a week. It passed emissions (just an OBD check, they didn't use the little sniffer wand) and hasn't thrown any codes or acted weird. Haven't noticed any exhaust leaks. 02 sensors have looked normal ever since it finished burning all the vaseline.