Join Date: Mar 2013
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My V6 is making this flapping sound at highway speeds. Goes away with more throttle or a downshift. It is definitely related to VCM activating. I just wonder how it interacts with the torque converter to cause the sound. I also seem to have the same sound at lower speeds while cruising and encountering an incline. The noise is much louder in this situation, and very brief because it snaps back into V6 mode because of the extra load caused by going up a hill. It sounds chunkier, almost like a real rapid rod knock. I'll have to take it to the dealer, I suppose.
Adaptive cruise control is the coolest thing since LED headlights.