What is the transmission doing that indicates it needs this part ? I have a 1999 caravan 4 cyl, and it kind of stutters as it shifts into 3rd gear, and sometimes as it shifts down into 2nd ? help

 

FYI me Master Tech. I take it hijacking threads isn't frowned on in this forum. I see it twice in this single thread and they are even changing the subject both times. We went from a transmission problem to an A/C problem to brake lights all on the same thread. Makes for a confusing forum. I'm on 3 other automotive forums and it's a major no no on all three.