Mj52730

I am stumped on the problem with my daughter’s 2014 Spark. Since she got it a few months ago she has had issues with dragging brakes. This problem has gotten progressively worse. Today, thinking it was a sticky caliper issue, I completely changed all of the front brake components. Calipers, pads & rotors. Bled the brakes & drove it. After a little while the brakes started building pressure again. Not sure where to go from here. It is an automatic cvt. Any help would be appreciated.