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It's a 2008 and has only 30k since I rebuilt the engine to include timing chains and gears. I don't remember the brand I used.The last timing chain set I did was on a Ford 5.4 liter. I had ordered a Cloyes set. But ended up sending it back finding out it was made in China. I did end up using a Melling set. I have used many items from Melling over the years and it seemed to be a favorite of engine builders when I sold parts. As far as the timing set for the Ford engine from them, it was made in the USA.
I would personally use the Melling set when it comes time to replace the timing chain and components on my Cobalt. I can’t say I’ve ever had anything from this company have to be replaced under warranty after installation, so there’s that that makes me want to use them.
As far as the rollers, not sure. I don’t really specialize in engine work, so I don’t constantly do it. But have done my fair share of timing chains. And I can think of a few things. Possibly an oiling problem. It could just be plain wear and tear. You don’t say how many miles the engine has on it. But if you’re pushing 200k miles, it is usually recommended to have replaced it some time back. Could be defective. Maybe just shit luck. But I would say it may have been past due for a replacement. I don’t look forward to replacing mine. But I would much rather do it than replace the engine. I can afford a timing chain set easily. Not so much a complete engine.