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I have a 2008 Ford Edge, about 83,500 miles. My transmission started to stutter, jerk before shifting. This happens about 40-45 mph and around 60 mph. I took it to the dealer where I bought it. Now 3 vists later and spending $1700 for a new PTO unit and seals. I still have my original problem. It is most noticable when going up an incline. The tranny stutters, jerks, then RPMs climb and speed picks up a little. This is starting to happen more. The dealer does not know what is wrong with my car. Does anyone have any ideas?

Good evening everyone. I have a 2008 3.5 AWD Ford Edge that recently crossed over the 100,000 mile mark. Recently i did a bit of service on it to include the following. Replaced the original waterpump for a ford original part. Replaced the oil with penzoil full synthethic after two engine flushes ( with a k&n filter after ) Drained and filled the tranny fluid with spec fluid ( 11 bottles of fluid ) Replaced the spark plugs to the .54 spec. ( All six plugs ) Put half a bottle of seafoam in the with the motor oil. ( Was this a good idea? ) Put in one bottle of seafoam in with the gas tank before a fill up. Also did a power steering fluid drain and refill. My question / issue that I have is Whenever I go to accelerate it starts to pull or "jerk" while its shifting. I cant really do any hard acceleration or quick take offs. If I dont do anything but a normal from a complete stop then I have this issue again and again. What could be the cause of this issue? What can I do to resolve it? I know this is very vague but Im not quite sure how to explain it and I hope that someone out there can help me?