The timing chain tensioner and guides are prone to wear and may develop an abnormal noise, requiring replacement.Google+
Car Problem Reports
Chevrolet Cavalier Timing Chain Tensioner/Guides May Wear and Cause Noise
Chevrolet Cavalier Problem
Engine Affected: 2.3L 4 Cylinder
Visitor, 2005 Chevrolet Cavalier, 160,000 mi
Knocking or ticking started randomly one day, the sound changes with the Rpm's and i have had a head mechanic listen to the engine and says it sounded like something with the timing chain and timing chain tensioner, upon looking up such complications it seems i am not alone in this shitty situation. I am outraged that there has been no announcement or recall of any kind on these models with the 2.2 ecotecs.