Throttle sticks a little

I'm looking at buying another Jeep... it's actually a '99 Grand, but I figured naxja could still give me some advice. When you step on the gas, it seems to hold the rpm for about 2 seconds after you let off. The salesmen goes, "Chrysler throttle plate... they're notorious for sticking if you leave the Jeep parked for a few days. If you drive it around the block it goes away." I call BS. Anybody know how serious this could be?
Thanks,
Billy

BTW: it's stock... 4.0, auto, 4x4

There aren't too many things that can cause it. Lube the end of the cable, check for obstructions/wires getting in the throttle mechanism.

Could be somewhat normal for them.

its not normal, you can remove the cables from the throttlebody and isolate the problem between the cables or the throttlebody. i saw a t-body binding on an xj the other day and have also replaced accelerator pedals on the grands before.

Thanks guys!
Billy

sounds like something for the dealer service dept to take care of BEFORE you buy it....

Have them look at it but as I said it could be normal due the way the computer handles the idle. Seen a few complaints on 4.7L WJ's also normal.