Hello guys. Im sorry if this is discussed already but ive been looking for answer. Maybe somebody here gad the same problem as me. I have a 2018 Kia stinger GT2 AWD. Been with me since. Recently i have noticed shifting problems. Harsh up shift from stop and vibrations (slight) but noticeable on highway speed. No tune. Only air ontake exhaust and wheels. I did change my spark plugs and upgraded coil pack. It helps a bit but the problem is still there. Especially jerking sensation during acceleration. Did changed the trans fluid as well. It helps a little bit but still there. But our of curiosity i removed the AWD fuse then i ran smooth. I havent changed my differential fluid. But before i do is there anyone here that had the same problem? Im hoping that changing the differential fluid fix my problem or replace the front differential. No noise on turning or accelerating just the harsh shifting. Thanks in advance guys!
AWD problem
- Thread starter Aaron R.
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ht_addict
Stinger Enthusiast
You could also try having your transmission learning reset and see if that helps. Was your car included in the service bulletin for the LSD diff? May want to look into that.
Snicklefritz
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For vehicles of the earlier years, there was a TSB to reflash the transmission logic, because of rough shifting. My 2018 GT1 has always shifted fine, so I never reflashed the logic, since it was not "broken." I have no idea how that played into AWD. My car is AWD too. But you might look into that and try it.
