Timing BELTS are outside the engine, run dry, and have no external lubrication. Timing BELTS should be replaced according to the manufacturers schedule.
But the SL2 is not equipped with a timing belt, it uses a timing chain. Timing chains are internal, well lubricated, and designed to last as long as the rest of the engine. You shouldn't need to replace the timing chain until you rebuild the engine.
You are correct that the SL2 uses a timing chain. However, since it uses a timing chain it does not need to be replaced as does the timing BELT. In general, a timing chain should last the life of the engine.
The V6 L series engine uses a timing belt, which must be replaced every 100,000 miles. The 4 cylinder Saturn engines use a timing chain that typically does not need replacement until you have a reason to remove the cylinder head.
The Saturn sl2 does not have a timing belt, it has a timing chain. And under most conditions it does not need replacing.
Not Applicable The Saturn 4 cylinder, both the SOHC and DOHC used a chain, and it doesn't need to be replaced unless the engine has OTHER problems.
Timing chain is usually replaced at 200K.
The 2013 Hyundai Elantra has a timing chain. The timing chain the 2013 Elantra does not need to be replaced ever.
Typically a timing chain does not fail since it runs in an oil bath. Of course, any physical component of a vehicle CAN fail, but timing chains typically do not need to be replaced until you rebuild the engine. A good general rule is, replace the timing chain whenever you work on the valve assembly.
Timing chains are designed to last the life of the engine. Replace the chain when the engine is overhauled.
Under normal conditions the timing chain will last the life of the engine. It is normally replaced during a complete engine rebuild.
Normally a timing chain will last the life of the engine and is replaced during a complete engine rebuild. No maintenance is normally required.
there is no timing belt -- only a timing chain that does not need to be replaced
chain. if you hear a clattering noise the timing chain and timing chain tensioner need to be replaced they are usually sold as a kit