Car starts to vibrate badly when going uphill around 75mph.
2014 Dodge Dart Aero, 1.4L DDCT automatic, ~131k miles
Basically it feels like the transmission has some gear teeth missing in certain spots when going uphill at 75mph and pressing the pedal harder feels like it vibrates more violently (not enough to crash). Seems to happen on 6th but haven’t manually tried 5th gear.
NOTE: This does not happen below this speed when going downhill or flat. Only uphill at 75mph.
I don’t mind about fixing it too much since I got the car for cheap and I already had it used for 7 years.
Hope this all makes sense. Is this more of a limitation, mild inconvenience, or a genuine safety issue? Honestly not looking to fix the issue if it’s just an inconvenience.
Any information is appreciated!