Season pork on all sides with pepper and a little bit of salt. Add pork to the bottom of a slow cooker.

Sprinkle garlic powder over pork and pour in 2 cups of coke and 1 cup water to slow cooker.

Cook on high for 3 hours or on low for 6 hours.

Remove pork from the slow cooker and drain any liquid left in the pot. Shred the pork and return it to the pot.

To a blender add enchilada sauce, green chiles, 1 cup of coke and 1/2 cup brown sugar. Blend until smooth.

Pour over shredded pork. Cover and cook on low for 1 more hour, or high for 30 minutes