Clicking sound coming from engine when acceleration

Hi, this is Bo, an auto expert on RepairPal's Car Genius team! Good ear! I love that you're in tune with your car! The clicking sound coming from the top part of the engine on your Elantra could be caused by several potential issues. One common cause is a problem with the valvetrain, such as worn valve lifters or a faulty camshaft. Another possibility is a problem with the timing chain or timing belt tensioner. Issues with the fuel injectors or ignition system could also cause clicking sounds during acceleration. Having a shop take a look to verify the origin of the noise is never a bad idea! If you have any other questions, please call us at 877-913-1554! We'll gladly find you a certified RepairPal shop in your area!