I've got an '04 Explorer XLS 2wd that has what I can only describe as a dead
spot in the trans.  If let to coast for a while at speeds between 10 and the
shift point to 2nd gear she'll lurch abruptly after stepping lightly on the
throttle.  There is also a slight delay between hitting the gas and feeling
the lurch forward.  This behavior only happens before the shift to 2nd.
This really makes for a jerky drive when making my way through residential
areas as I experience this at just about every turn.

I was told by a Ford tech that this is called drivetrain wind-up.

Has anyone else experienced this?  Is there a fix or should I just get used
to it?

I have about 5 more months of warranty left and I would love to go back to
the dealer armed with more info.

K