de6w6it

I just put in a new throttle cable because my original one snapped. The new one is in great shape, and slides in the housing super smoothly. I put some lithium grease on it to ensure that, and installed it. It seems to be adjusted correctly.
When the truck is cold, after you let off the gas to shift or come to a stop, it revs up way high, and then slowly settles back down. If the cable was sticking, I could see it holding the rpm where it was, or if you are shifting and there is no longer a load on the motor, when you let off if it was stuck, I could see the rpm's going up, but it happens even if you rev it in neutral, with there never being a load on the motor. But once the truck warms up, it doesn't do it anymore.
I have adjusted my tps a little while back, not sure if that would cause these symptoms. I have also made sure the cable slides in its housing properly. I cleaned the throttle body so I am confident the butterfly is not sticking or anything, and I removed that diaphragm thing that the throttle hits back on when you let off the gas (only on manual trucks) to make sure that it wasn't slowing down the throttle return, or pushing back on it at all.
Any ideas, thoughts, comments, or anything would be much appreciated.
thanks
dewitt

just a 22re

well let it cool down and then go under the hood and snap the butterfly by hand and see if it does it there to if not then its in the cable maybe its kinked or something and not the TB so check it out and let us know

Matt16

My engine revs up a little when I push the clutch in. Maybe 500rpm, I take it yours it more.

abecedarian

Take the cable off and clean all of the lithium grease off the cable and from inside the sheathing. Then use a speedometer cable type lubricant on it. The speedo lube is basically alcohol and graphite. The alcohol wicks up the cable carrying the graphite with it then evaporates and leaves dry graphite on the cable meaning there is nothing for dust to stick to and gum up the works.
See if that helps.

de6w6it

its fixed, the grease on there was causing it to be harder/slower when pulling back, so throttle body wasn't closing fast enough or easy enough. I lubed it properly, and it works like a charm. thanks for the suggestions, much appreciated!