When you did the flush did you drop the pan and change the filter?I'm bumping this older conversation. I am having the exact same issue on my 2004...started around 54K miles as well. Did an ATF flush and the problem persists. I am curious if others have tried the LUCAS transmission fix. Since my AT doesn't seem to be losing fluid or leaking, will this help me? I don't want to overfill the AT by adding fluid either. Thoughts?
Anyone have an udpated solution?
Have you had the transmission software update?