How did you determine you needed 3 quarts?
If you were to drop the transmission pan to change fluid you would need little more than 3 quarts. So chances are you did add too much. However when too much fluid gets added it can cause other issues. You could get a hose that might come off for having too much fluid.
Has it been driving ok since?
Any questions please let me know.
Wednesday, July 14th, 2021 AT 8:27 PM