Enthusiast 01be16a5a93688912f14755221fb15211b518d9a788cf01b455e03cc1bd585acEnthusiast
65 points
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Problem Reported: Broken Timing Chain
January 21, 2011, 04:32 PM
<p>A rattle-type noise may be noted on cold start-up due to a failing <a title="Timing Chain Tensioner" rel="nofollow" href="/timing-chain-tensioner">timing chain tensioner</a>. Chevrolet revised the design of the tensioner multiple times over the production of the Cobalt, replacement is necessary to remedy this condition. A failed chain tensioner may result in a broken timing chain and subsequent engine damage if the issue is not diagnosed and repaired.</p>
Car Review: 2007 Chevrolet Cobalt
May 17, 2011, 11:40 AM
Engine blew and bushings worn out on control arms with less than 45k miles on it. Junk from GM. Losing my faith in General Motors.
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