2002 Ls v6 ..manual shift..when shifting between the gears, the RPM takes about 5 seconds before it drops..I have been to the ford dealer (2)..both places said that it is something I need to learn to live with..an independant mechanic who himself drives an LS can't help either..I find this hard to understand..also the engine light remains off, so it makes it even more difficult ....could the throttle body be "electronically" sticking..any ideas would be helpful

Is this a recent thing or has the car always done it?

Is this a recent thing or has the car always done it? the problem came about 2yrs ago..I was told that it would pre-maturely wear the clutch disc out..makes sense the rpm does not drop soon enough before shifting..time to get a re-newed interest to take care of this problem

IAC valve on the throttle body? every changed it? Just changed mine on my 01V6, it was carboned up. Works like a charm now.