i have about 58k on my car right now and i think my timing chain tensioner is going bad. do you recommend that i replace the chain and the tensioner or just the tensioner?

 

I think just the Tensioner. There is an upgraded one you can get.

 

do you by chance know how many miles the chain is rated to last?

 

Just replace the tensioner,its a easy job or the dealer will charge you .5 of an hour.
Timing chain should last the life of the engine as far as Im concerned and doesnt requore replacing unless here is something wrong with it
Late models (2006)had bad chain rollers and there was a tsb out on that.

 

whats a tsb, i have an 06. Thanks for all the help by the way!

 

Is your car making noise all the time from the cam chain?
Just had mine replaced(tensioner) but I was getting it intermittenly on start ups once and a while and it seems to have solved the problem.
Its a inexpensive part and would change it firsts.
I will look up the tsb when I get time.And its a technical service bullitine

 

same **** thats happening with mine, hear a little chain noise on startup then it dies down. Just dont want to cause any probs.

 

last question, is this the latest and greatest tensioner?
Ecotec Timing Chain Tensioner 12608580 - Crate Engine Depot

 

Not sure call the dealer part dept and ask ,there was at least 3 revisions !

 

Let me know what happens after you replace that tensioner. It will be interesting.

 

what do you mean it will be interesting?

 

It takes more than half hour like previous poster said. Its not just remove and install. You will have to take the valve cover off or you wont be able to set the tensioner up = mass engine destruction. Also when you remove the tensioner your chain slack that will hang on the crank gear resulting in 1 tooth out of time, engine light on and having to now take the engine front cover off to retime it. Just saying, be prepared you gotta know what your doing. There is a new design tensioner without an oring, it is low clearance fit.

 

ive read a couple posts saying that the new one just bolts in and your good to go, if i have to mess with timing and all that im not even going to put my hands on it lol.