Sunfire timing chain

[Petedel]

Back in march 2012 i replaced the timing chain and tensioner on my 2000 Pontiac Sunfire 2.2, last month i replaced it again thinking it was a bad link or tensioner. This morning it broke again. No aggresive driving or excessive speeding. (2) chains in a year.

 

[melsg5]

Where are you buying your parts? Isnt there a chain guide also? Are the cam and crank gears in good condition?