reelescape

Is there a recommended replacement mileage on 2.2 timing chains or does this problem only shop up on neglected hhr's

Snoopy

No !!!!

Oldblue

the time to change the timing chain is when you hear the chatter on start up.

07azhhr

My noise on startup was due to the tensioner. It went away after replacing the tensioner. From waht was discussed on the tensioner how to thread, if you let this go too long the chain will get damaged and need to be replaced.

donbrew

If you really feel that you have to do it, then put a new head gasket and water pump and guides in at the same time to save lots of labor.

ChevroletCustomerService

Hey there reelescape,

Are you currently experiencing difficulties with your timing chain? If so I will be glad to contact your dealership on your behalf regarding your concern. Please feel free to send us a private message referencing your possible concern if we can be of any assistance.

Kristen A.
Chevrolet Customer Care