Would line pressure affect shifting manually? The trans when shifted manually works perfectly. Rubber in between gears.
The builder did mention checking pressure quickly before removing the pan and checking things out in the valve body. He also mentioned governor as a possible cause. Again I’m trying to be more well versed in this topic so I understand what he’s doing.
Again, automatic transmissions are like unicorns to me. This is my first automatic car in about the last ten cars.