You can’t hear it, but the “little engine that can” is shown here tick-tick-ticking away. When we bought the Jeep we were not convinced that it needed a timing chain. Sure it ticked, and it was coming from the front of the engine in the area of the timing cover, but the 2.5L ran strong. On a buddy’s advice, we tossed a new harmonic balancer at it, but it still ticked. Finally, after a year or two of our abusive ways, the engine started running like it needed a timing chain. Time to bite the bullet.