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  1. #1
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    Default 2014 C7, Drive line clunk!

    My Corvette is a 6 speed automatic with 32,000 miles recorded. When cruising in slow traffic say between 30 and 50 mph the engine will run in 4 cylinder configuration. As soon as the throttle is mildly applied the configuration will immediately change to 8 cylinders with a rough drive line clunk. This happens about 75 percent of the time. Also, when slowing for a low speed right turn the change down and transmission engagement is sometimes rough. What remedial actions can be taken and are there any service bulletins?

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    Technical Writer for Internet & Print Media
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    Wow...the transition in and out of cylinder deactivation is supposed to be seamless. I've driven trucks and C7s and, while if I listened carefully, I could hear it, but I never felt it.

    One thing you may want to look into is whether or not this is a cylinder deac. problem or a problem with the TCC in the trans.

    To be honest, I don't have any additional suggestions other than to go to the dealer and inquire.
    Hib Halverson

  3. #3
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    Default Drive line clunk.

    Thanks for your reply and suggestion. My local dealer will be investigating next week.

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