I have an 2007 Hyundai accent automatic car. When it goes into Overdrive, after a bit it will make a big jult, then it dont matter if im in overdrive or not it will make it hard to switch gears and be slow at it. it will run High RPMs no matter which gear its in (when in over drive it will be normal rate for RPM).Seems to hate 2nd gear. I just got the car in april 2018. the dude i bought it from said he just change/upgrade the transmission..We have tried to replace the spark plugs and coils. But that was mostly because the check engine light was on.. otherwise nothing.. Ive notice the gas millage seems to go down too but im not sure if its because it needs an tune up, oil change, that weird issue, or all of the above.. its making weird sounds... like a high pitch sound.. hard to explain the sounds.. What do you think it could be?
What makes this problem better or worse?
when overdrive is used
How long has your 2007 Hyundai Accent had this problem?
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