What are common symptoms of a worn timing belt?

A worn timing belt can lead to engine misalignment and noise due to the critical role it plays in synchronizing the movement of the engine's crankshaft and camshaft(s). When a timing belt is worn, it may stretch or begin to slip, causing the timing of the engine's operation to be off. This misalignment can result in poor performance, including the engine running rough or producing unusual sounds such as ticking or rattling.

The timing belt is essential for ensuring that the valves open and close at the proper times, and when this timing is disrupted, it can lead to significant issues with engine performance and operation. Worn belts may also result in components like the water pump and other accessories not functioning correctly, which contributes to abnormal noises.

While overheating, low oil pressure, and poor fuel efficiency can occur in various engine issues, they do not specifically indicate timing belt wear or failure. These conditions are generally associated with other engine problems or maintenance issues, making engine misalignment and noise the direct symptoms of a worn timing belt.