Question: how do you know if your car needs a timing chain?
Answer: Engine Misfiring and Lacking Power. When an engine misfires, it is a problem with the valve timing. ... 
Metal Shavings in the Engine Oil. This is something that will only be noticed when you have an oil change. ... 
Engine Failure. ... 
Engine Light is Illuminated. ... 
Rattling Noise When Idling.