My rebuilt tranny only has 27K on it and I was wondering if there were any sensors in addition to the CPU that told the tranny when to shift. The first time my tranny went out the CPU also had to be replaced. The car doesn't have any pattern of shifting, I can drive the same way and it will shift fine or it will slip into 4th, different every time. WOT it shifts nice and hard. Any ideas would be appericated.