When your vehicle requires a timing chain replacement, there may be several potential issues you might encounter:

1. Unusual noise from the engine: One of the most common symptoms of a failing timing chain is noise, often a rattling or clanging sound from the front of the engine.

2. Engine misfire or running rough: Worn out or damaged timing chains can impact the precision of the engine's timing, causing it to misfire, run rough, or lack power.

3. Vehicle not starting or stalling: In extreme cases, if the timing chain breaks, the vehicle will not start. Sometimes, the engine may stall without warning while driving.

4. Check engine light or other warning lights illuminated: Your vehicle's on-board computer system can typically detect issues with the timing chain, often triggering the check engine light or other warning signals on your dashboard.

It's important to address these issues swiftly as neglecting these symptoms can lead to extensive engine damage, resulting in high repair costs. We highly recommend contacting a professional mechanic to help with the timing chain replacement.