I hit a deer a few months ago messed the front end up. Hubby used JB on the radiator leak. Couple weeks ago I noticed another leak he finally fixed that. An one night last week heater went out. Replaced thermostat and found it had blew 3 freeze plugs. Replaced all 3 with the rubber plugs. No more leaks but now it sounds like someone cut the catalytic converter off. What could it be now?

 

It's a 2008 Town and Country