![]() When a timing chain becomes stretched it will cause vibrations inside the engine that will produce a rattling sound as it idles. A normal engine should have a consistent and smooth sound indicating that everything is running as it should. One auditory way to find out if your timing belt is failing is to listen for unusual rattling noises. If its sensors detect something is wrong then the light will turn on requiring immediate attention and a scan to be conducted to get to the root of the problem.Ībnormal rattling sounds from the engine while idling The vehicle’s computer will display this warning light only if it detects something is wrong with the car. The check engine light is onAnother indicator of a stretched or a damaged timing chain is the check engine light. If this happens your engine may skip its timing and the pistons may come in contact with the valves leading to a serious repair and impairing the movement of your vehicle. The engine refuses to start or fails to idle A broken or damaged timing chain will not allow the engine to start or will have it fail while driving. However, it could also be a sign of something else, so keep that in mind when inspecting the oil. If there are metal shavings found in the oil it could be an indication that the timing chain has been stretched and is on its way out. Metal shavings are found in the oilA good way to detect if a chain is failing is by looking at the oil in the engine via an oil change. The engine misfires or runs poorlyThis could indicate that the timing is off with the engine as the valves aren’t properly in sync with one another and could leave a small gap in between the combustion process. Here is a quick list of signs to look out for which indicate that it could be time to replace a timing chain. It’s also harder to make a timing chain jump teeth causing the engine to go out of sync. It is important to note that while a timing chain is more durable than a timing belt signs of it stretching or failing are slightly harder to detect. It is also important to keep the timing chain well lubricated as using the wrong viscosity oil could damage the timing chain pins and plates. However, this will still depend on the engine and the specifications of the manufacturer. There are many symptoms when a timing chain needs replacing, if your engine has lost power or started running a bit lumpy or is starting to rattle, it is. As this part lasts longer than a timing belt these will be changed between the 120,000 to 150,000-kilometer mark of a vehicle.
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