I just picked up a 2012 Sport about 3 weeks ago and currently have about 850 miles on the truck. Love it so far but have noticed a strange notchiness to the rpm swing in 2nd gear. Almost like the rpm's hang for a second(generally around 2500 R's)and then pick up. The speedo doesn't appear to hang up. I only notice this under moderate throttle(maybe20-25%). Under any harder throttle load it swings fast through the revs like it should. It almost seems like the truck is deciding if it should shift or keep accelerating and it picks the latter. Anybody else notice this?

Thanks in advance!

 

Can't say mine does that. If the engine was hanging one would both the tach and speedo would do it at the same time. I'm not clear if you can feel the vehicle pause when this happened so I'm wondering if perhaps the tach is problematic. Looks like a trip to the dealer is in order.

 

Can't really feel the truck pause at all. It acts as though its undecided whether it should pause and shift or continue on in that gear. It acts like a second hand on a clock if that makes sense.

I took a couple vids on the way to work this morning. In the first video it happens around 2600 rpm. In the second video around 3100 rpm.
https://www.youtube.com/watch?v=b6C6...e_gdata_player
https://www.youtube.com/watch?v=mTK9...e_gdata_player

 

Could be torque convertor locking up