So, I was driving my 2001 MC SS a few days ago (185K) and noticed the temp gauge going past the halfway mark. I pulled it over and noticed that there was coolant and ATF rushing out of the overfill. Obviously I need a new radiator, but when I start it now, theres white smoke coming out of the exhaust and the oil is discolored. Would trans fluid burn in the combustion chamber and burn white? Or does this sound like I have a blown head gasket/warped head as well? It also is getting a code for "Random multiple misfire". This happened when I was about 2 miles from my mothers house, so I drove it there and haven't moved it. The car did get hot, but not in the red and dying out. I don't mind replacing the head gaskets, as I was going to do that this summer anyways, but this is real bad timing for this. I checked and there is NO coolant in the the transmission, so I think Im ok with that.

Any help would be greatly appreciated!

 

You need to flush the coolant/ trans fluid out of that engine. Also change oil and see what you have from there. If there is coolant in the oil that could destroy the bearings in the bottom end pretty quick. White smoke is burning coolant, blue smoke is burning oil.