I purchased my 2000 Taco with 194,000 miles on it, I've put 2,000 miles on it. It runs fine unless I get it over 3,000 rpm's, at that point it has a hesitation or pause, then will pick up and go. The truck is a V6 model, standard. Does anyone have any idea's what is wrong. I was told by the dealer I bought it from that they changed the timing belt at 161,000 miles and one of the CDI boxes (??) was changed at 190,000. Any suggestions would be greatly appreciated.