2010 Ford Fusion now has pulley problem

My car had the control arms done coils, and now making a rattle noise. Had air conditioning and new tire, barkes, etc…now mechanic says that it has a pulley problem inside engine

That sounds like the pulleys/gears for the timing chain. There’s a known issue with the 3.0 liter V6. https://m.carcomplaints.com/Ford/Fusion/2010/engine/timing_chain_phaser_failure.shtml