Freeze plug

I think a freeze plug may have just blown on my 03 Rendezvous. How easy are these things to replace?

No, in a fwd vehicle they can be difficult to access, get under it and see which one it is, then you will know.

Yeah, they can be a nightmare to replace, especially on the backside....imperative that you pinpoint the leak....it could be something else.....

Ok, thanks guys. When I get back home I'll check it out. At this point I only know that coolant/water seemed to be spraying up from the back and over the top of the engine.

first thing comes to mind is heater hoses going into the firewall.