3 days ago I changed the oil in my 97 Blazer. I also filled the transmission fluid, and overfilled it not being used to my new car. Since then, it has started to overheat and will spill fluid on the ground after it is shut off. All the fluid levels check normal, and the oil-based fluid only pours out when it is shut off.

Any suggestions?

 

possibly flush the cooling system and start over