OK,
I have a 2001 QC 4.7 4X4 5 speed manual and the truck has always done this from day 1. What happens is when I spike the throttle from idle nothing happens for a second like a time delay or something and also when the engine is revved up and held there(like when up-shifting) and I back right off the throttle, it like holds the rpm for a second before coming down....very annoying. I'm just curious if anyone else has this and if so do you know how to get rid of it? I feel it may be computer programming from the factor

Input will be much appreciated,
Brian

 

Mine does the same thing since day one, get used to it. 2002 4.7L auto. I drove an 06 with 4.7LHO, the situation was even worse

 

I believe this might have have something to do with the TPS sensor. Let me look and find the info on how you can adust this. That might be your problem.

 

Here ya go guys. Check this out. Maybe it'll help you out.
http://www.geocities.com/intense79/tps