How to Replace a Gas Cap & Door Lock Actuator | DIY Car Repair with CarParts.com

Small fixes, big difference. Tosh swapped out his broken gas cap and tether, then tackled the faulty door lock actuator on his rear passenger door. And just like that, everything works the way it should again. A solid gas cap keeps fuel vapors sealed, protects your efficiency, and stops that check engine light from nagging you. A working door lock actuator means no more wrestling with your doors. He added his vehicle on CarParts.com first, so every part was matched exactly to his application. Better fitment, easier install, and no compatibility headaches.