I spoke to a GM mechanic about this earlier today. There have been some timing chain issues with both 3.6L engines. However, the people that seem to be having these issues are the people who don't know how to pop the hood on their cars, never mind check the oil. There have been plenty of people come in complaining the car has 'no power', and when you take the car out, the oil is off the dipstick. I believe that checking the oil periodically, and topping it off when necessary will avoid this problem for the most part. The fact that this issue seems to be unknown to enthusiasts speaks volumes to the fact that this is more of a maintenance issue then a design issue.
Unfortunately only GM knows the answer.......my dealer has no idea if there is any difference between "old" and "new" timing chains. Very unsetling...I did check around, and you are right, seems to crop up everywhere under closer inspection.
Have they released a new chain that solves the problem?
No, it does not break. You will get CEL (check engine light). Expect code P008.So does the chain break, or just start rattling, and does this apply to the 08 cars only? Are all the 08-09 CTS cars RWD and/or AWD? Also, what would the VIN# be for the non DI and the DI? Thanks!
does anyone know how much the timing chain replacement would be, or is it included in the warranty. also is there a way to tell if the timing chain is starting to go?
Here's a novel approach -try s.e.a.r.c.h. :helpless:So does the chain break, or just start rattling, and does this apply to the 08 cars only? Are all the 08-09 CTS cars RWD and/or AWD? Also, what would the VIN# be for the non DI and the DI? Thanks!
Does it mean that the new timing chains dealers are installing now is the "new and improved" design?The new and improved chain was not introduced to production until middle of 2010 production. The design is different and should solve the problem.