Wife was driving down the interstate (18,000 or so miles on vehicle), and engine suddenly shut down causing loss of power. Had to safely maneuver vehicle off the side of the road to try to restart. After restart, continued driving without issue until noticeable clicking noise and engine thumping noise. Vehicle was diagnosed with lifter issues. After repair, and 2000 miles additional driving (20,000) ticking and thumping noise returned. Taken back for service and notified full engine replacement is necessary.