Timing Chain

What is a Timing Chain?
A timing chain does the same job as the timing belt (cambelt). It drives the camshaft(s) in an engine, the timing of this process is vital and must be within a very narrow range to allow the engine to run correctly. Timing chains need replacing at certain intervals (depending on the car) and can wear out quicker if engine oil levels aren't maintained.

Timing chains can stretch with wear, they can also stretch due to sudden shocks such as mishifting a gear. When the chain is stretched the timing of the engine will be out and will lead to all kinds of problems. Badly stretched timing chains can lead to catastrophic engine damage.
What problems can be caused by this part?

Check Engine warning light showing on dashboard

The dashboard warning light showing on this page (or one very similar, sometimes a slightly different shape or colour) has appeared on the dashboard and doesn't go off when the car is running.

Engine makes ticking sound

When idling the engine sounds like its ticking inside. The ticking noise is sometimes louder, often just after starting up it's louder. The ticking sound increases in frequency when the accelerator is pressed down to increase engine revs.

We have 23 owner problems that mention the Timing Chain