Hello Everyone, New member here. I've gotten lots of help and insight this last year through your knowledge and expertise for my 2006 XK 3.7l 4x4 QT1. Bought used in Jan. 2010 and has 53k miles. I've been experiencing some very inconsistant shifting since owning this, especially going up long and windy roads. I'll be accelerating to the bend in the road at posted speed limits, or even turning right or left from straightaways, let off the gas to do the turns, and then resume acceleration. Sometimes it down shifts, and sometimes it up shifts. While it's deciding what to do, I have no control over the accelerator at all. I could push to the floor and nothing. Once it finds it's gear, everything is fine. Seems at times it doesn't know what gear to be in. The shifting is never hard, always smooth. Could this have something to do with tranny speed sensor?:icon_confused: Any input appreciated.