I have seen a couple of threads about this problem I am encountering, but have found no apparent answer. I have a '94 V6 3.2L mustang, and I believe it is having transmission problems. I will be driving along, when all of the sudden the RPMs will jump up as if I am in neutral. Then the car will suddenly remember it is supposed to be in gear and slam hard into gear, as if I were neutral dropping. One mechanic told me I might have a broken spring in my piston? That makes no sense to me, but 3 other places i called say it sounds like a transmission problem. It usually does it between 30-40mph, and rarely at higher speeds. It usually does it also after a long trip, usually highway miles. I am not a huge car buff, but I think I understand that AODE is the top gear, is the problem something to do with that?? I hope someone has experienced this before and has a clear cut answer, but any advice or suggestions will be just as helpful. Thankyou,
Charlie

 

I'm not too sure, but when you're were told about the piston spring, it's not the engine, it's one of the servos in the transmission he was talking about.