Why would my 3rd gear suddenly start to slip?
In my 2002 Hyundai Sonata, out of nowhere my 3rd gear is shifting so hard that it feels like I hit a huge hole and the car shakes badly. I ask a locate mechanic and was told that it could be electrical due to the fact the i recently changed my head unit and speakers yesterday. Also it isn't slipping every time, maybe once out of every 5 times it shifts smoothly. I also checked my transmission fuse which looks fine. Another person said it could be something called a brainbox that is located under the battery. Any ideas? THANKS!
- GouthamLv 49 years agoFavorite Answer
I have always drove SONATA AT!!!
well the problem in your MT may be the the 3rd gear would got screwed while meshing, just a simple service should help you out. You may have to replace the gear set if it has completely worn out.