Place your roast in a slow cooker and pour on the Coca Cola. Next dump on your brown sugar followed by your taco sauce.
Let cook in your slow cooker on low for about 10 hours (be sure to check to see if your roast is frozen - if it is you might need to cook it even longer.)
When it is finished cooking, take the pork roast out of the slow cooker and shred. Then add back into the juices in the slow cooker.
Using a slotted spoon, serve on tortillas with your favorite toppings. I like black beans, onions, tomatoes, guacamole, and cheese. You could also serve it on lettuce and make a delicious salad.