Definitely a timing chain -- I just had mine replaced this past weekend mid-way through a 12-hour drive. Symptom was a grinding sound still present when all external belts disconnected -- opened it up and the plastic guide holding the chain in place was broken, and there were chips off some links in the chain; the mechanic was amazed I'd made it without any engine damage. We got a chain replacement kit (about $150) and went the remaining 7 hours without incident.
The 4 cylinder Saturn's all had timing chains.
All of the Saturn 4 cylinder engines used a timing chain. The V6 Saturn's used a timing belt.
Timing chain
The V6 Saturn used a timing belt. The 4 cylinder's used a timing chain.
All of the 4 cylinder Saturn's used a timing chain. All of the V6 Saturn's used a timing belt.
All of the 4 cylinder Saturn vehicles used a timing chain. Only the V6 Saturn's used a timing belt.
All Saturn 4 cylinder engines have an internal timing chain. All Saturn V6 engines have a timing belt.
Chain
It has a timing chain.
It has a timing chain
There is no timing belt. Saturn Ion's use a timing chain.
Yes, it uses an internal timing "CHAIN", not a belt. The timing chain should last until the engine needs to be rebuilt.