Saturn Repair Problems? Ask a Mechanic for Answers ASAP
It sounds like you have the dreaded stretched timing chain. It's a nightmare to fix. You will probably have to pull the engine down (yes, it only comes out the bottom) and replace the timing chain and guides. The 2007 and 2009 3.6L both have a special milage coverage for 10 year 120k miles on the timing chain on this vehicle. Everything I have seen shows that GM skipped the 2008 in their coverage campaign though.
After changing the oil it might clear up, but from what I've seen, the chain is probably toast.
Here is a TSB on it from GM. If the noise goes away after the oil change, but the light still sets, you can take it to GM for a re-flash. If the noise is still there, GM recommends timing chain, heads, etc...
Please let me know if you need any additional info.
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