I forgot to mention that the MIL is not on, there are no codes. The rattle is so quick and intermittent that’s it’s hard to say, but yes, that’s kind of what it sounds like. The dealer can check the crank to cam correlation (synchronization) , because if the chain is stretched a lot, the cam and crank sensors will be out of synch, because the cams will be retarded. But my service advisor said that it may still be in synch with a stretched chain. Apparently mine is in synch because there are no codes. But with more than 7 notches showing, mine should qualify for warranty. I’m taking it to the dealer in a week.
@@randytempleton5797.....So did they fix under warranty? And did they just replace the chain and tensioner to solve the rattle or all timimg components in there? Thanks
@@chasechevy8933 They did repair it under warranty. I’m not exactly sure what they replaced, the service advisor was not sure. I know they replaced the chain, tensioner, and guides.
@@randytempleton5797 ....Ok yeah, that's pretty much the whole shabang. One more question, would your noise variate depending on the rpm? Mine seems to do it more at idle and low rpm, then go away under acceleration.
I’m having the same problem does it throw a check engine light and does it sound like metal hitting plastic?
I forgot to mention that the MIL is not on, there are no codes. The rattle is so quick and intermittent that’s it’s hard to say, but yes, that’s kind of what it sounds like. The dealer can check the crank to cam correlation (synchronization) , because if the chain is stretched a lot, the cam and crank sensors will be out of synch, because the cams will be retarded. But my service advisor said that it may still be in synch with a stretched chain. Apparently mine is in synch because there are no codes. But with more than 7 notches showing, mine should qualify for warranty. I’m taking it to the dealer in a week.
@@randytempleton5797.....So did they fix under warranty? And did they just replace the chain and tensioner to solve the rattle or all timimg components in there? Thanks
@@chasechevy8933 They did repair it under warranty. I’m not exactly sure what they replaced, the service advisor was not sure. I know they replaced the chain, tensioner, and guides.
@@randytempleton5797 ....Ok yeah, that's pretty much the whole shabang. One more question, would your noise variate depending on the rpm? Mine seems to do it more at idle and low rpm, then go away under acceleration.
@@chasechevy8933 Ours made a little noise at start-up and that’s all. No noise after a few seconds.