1994 Geo Metro - Timing Chain Tensioner

Symptoms of Bad Timing Chain Tensioner

The timing chain tensioner keeps the timing chain appropriately tight by using hydraulic pressure or spring tension. As the timing chain is used, it may stretch slightly, and the timing chain tensioner adjusts pressure accordingly to ensure that the chain continues to work as it should throughout its life. These tensioners are often replaced at the same time as the timing chain, as these parts are designed to wear out at approximately the same rate. Over time, the timing chain and the tensioner can wear out, which may result in slack in the timing chain, or the timing chain may fall off or suffer accelerated wear that can cause it to break. Signs of a failing timing chain tensioner on your vehicle can include loss of power, the engine shaking or backfiring, hard starts, rattling engine noises, or a rough idle. A damaged timing chain tensioner may also cause your engine to go into limp mode, trigger a Check Engine light , or cause complete engine failure if the timing chain can no longer operate correctly or is broken. If you need a timing chain tensioner, shop O'Reilly Auto Parts. We carry replacement timing chain tensioners and timing chains for most vehicles to help you make a complete repair and keep your engine running its best.