I just noticed here lately, that whenever I drive, my car does not want to go into 4th gear. We were driving home yesterday, and it was cold and wet, and just for a second, we noticed that the car jumped like it had came across a black ice. Ever since, it has not gone past 3rd gear.
I was told it could be a speed sensor or the cellinoid sensor getting worse.
I flushed the tranny fluid last summer and when the car gets hot, it switches into what has been told to me is, "fail safe mode".
Any ideas?