My 2000 Buick LeSabre is running hot, no smoke from overheating, but felt as iff it was going to break down when I was parking.

Motor overheated if was in red u heard bubbling antifreeze on ground either head blew or cracked engine block

What happened? What was the problem? Did you fix it?

For future readers: First, find the leak. You may have a slow leak in the radiator hoses, the radiator or the connectors through the idler pulley housing going to the heater. I had a leak on the passenger side that showed up on the ground on the drivers side. The coolant ran along the cover below the radiator. I've also had a plugged up overflow bottle that prevented coolant from returning to the radiator during cooling, resulting in overflowing to the ground through the bottle vent.