A timing chain typically doesn't need to be replaced until you tear down the engine for a rebuild.
Unlike a timing belt, which is operated dry, the timing belt is in an oil bath and will last much longer.
If your engine needs a valve job, rings, oil pump or any other components that require a "tear-down", that would be the right time to replace the timing chain, sprockets and chain tensioning rails.
Chain
The DOHC SL2 has a timing chain.
All Saturn 4 cylinder engines have an internal timing chain. All Saturn V6 engines have a timing belt.
2002 L-series used a belt.
2002 and up four cylinders have a timing chain no belt.
no.... The Saturn Sc2 (in all years of production) has a timing chain......much better in my opinion.
The timing chain does not have a service interval. It only needs replaced if there is a failure.
You can replace a timing chain on a 2002 Pontiac Sunfire by visiting a local mechanic and having him take care of it for you. This is a tricky part to change yourself.
The 6 cylinder Saturns were equipped with the "Ecotec" engine, which used a timing belt. Timing belts fail over time, and Saturn recommends that the belt be replaced every 100,000 miles. The 4 cylinder Saturns all used timing chains. With recommended service and normal use, the timing chain should not fail. It is recommended that you replace the timing chain and sprockets whenever the engine is rebuilt, but otherwise, the timing chain is considered to be quite reliable.
75000 miles
All 1991-2002 Saturn S-series cars have a timing chain. The Ecotec 2.2 and 2.4 L engines also have a chain.BUT!!!The V6 engines all have timing BELTS.
there is no timing belt -- only a timing chain that does not need to be replaced