Here are some symptoms of a bad timing chain:
* Engine noise: A bad timing chain can cause a rattling or knocking noise from the engine. This noise is most noticeable at idle and may get louder as the engine speed increases.
* Engine performance problems: A bad timing chain can cause the engine to run rough or stall. It may also cause the engine to lose power or hesitate when accelerating.
* Check engine light: A bad timing chain can trigger the check engine light to come on. This light is a warning that there is a problem with the engine and should be diagnosed as soon as possible.
If you are experiencing any of these symptoms, it is important to have your car inspected by a qualified mechanic. If the timing chain is found to be bad, it will need to be replaced.