Our car started having this problem with less than 500 miles on it when we first noticed it and now has 2700 miles and it is still doing it. Our dealer has no clue what it is. I even reference this forum when I told them about it.Thanks for letting us know. Is this solution working for you?
happydadto5: The owner's manual documents that the engine clutch actuator fluid should be changed at 18 months or 22,500 miles, whichever comes first. At least one member of this forum has documented that he drove over 100k without ever having that service performed. But what might be interesting to you, your dealer, and anyone else having this problem is that the service manual documents that after changing the fluid, the actuator must be made to "re-learn". That involves a piece of computerized diagnostic equipment that a Kia dealer's service garage should have, but some people have reported that their local dealer wasn't familiar with the requirement (my own dealer claims that they know how to do it and will be able to when the time comes for my car).
If I was having this problem, before I had the actuator replaced, I'd suggest to my dealer that they consider bleeding the fluid and then initiate the re-learning process. But before I signed up for that, I'd want to ensure that they would be doing it under warranty, because the procedure is likely to cost over $100 (I think I was quoted $120).