Compare prices on timing chain replacement

Your car is either going to have a timing chain or a timing belt, but they are in charge of the same thing: synchronizing the rotation of the crankshaft and the camshaft. The camshaft controls the valves in the cylinder head, making them open and close at the right time while the crankshaft moves the wheels. So what does a timing chain do? It connects and thus coordinates both of these movements and makes sure that the engine works correctly. 
How do I know if my car has a timing belt or chain? Your car manual will tell you if you are unsure, and while the timing chain and belt do the same job they look quite different. As the name implies, the timing chain is a metal roller chain, similar to a bicycle chain, located within the engine. A timing belt is made from rubber and sits outside the engine. Timing chains were used first and were eventually replaced more commonly by belts, but they have recently made a comeback. 
A timing chain needs lubricating by the motor oil to function properly but usually has a very high life expectancy. Timing belts have to be exchanged more regularly. 

When to change the timing chain?

While durable, a timing chain can also wear out over time, as can its components like the timing chain tensioner. Experts recommend replacing it once your car reaches between 80,000 and 120,000 miles depending on the make and model. 
However, if you are driving an older car or one with high mileage you should regularly check for signs that the timing chain is wearing out. 
In general, you can expand your timing chain’s life by monitoring the oil you put into your car. Since the chain’s lubrication depends on motor oil, you need to make sure the oil is changed at regular intervals. It is also important to use high-quality oil with good viscosity so it reaches even the small nooks and crannies of your chain.