Will I'm just about tired of my TB. Every since I've had it it's been one thing after another. Had to get me trans and transfer case, new interior wiring harness. Vent actuators of various types, etc etc etc. Now this shit happens. I guess it started some time back when I was running on fumes and REP light came on. Pulled over for some fuel and everything was fine. Few months later it starts again. First just once in a blue moon. I thought it was loose battery cable so I got it fixed. Then it started happening all the time. Until now it seems barely drivable. I took it to AutoZone got a p0121 code they recommended getting new throttle body. Well first I decided to clean throttle body and it seemed better only one or two times every half hour. Then today it's back to once every five minutes. Sometimes it won't let it go out of second gear and will Rev to my heart's content and other times it seems like I am only lightly pressing gas when I'm flooring it. The only temp fix that works for me is to pull over, shut truck off, start back up and run ten minutes then restart and go. That seems to work 90% of the time. But for how long can very from seconds to the rest of the day. I have noticed it at all speeds, temps, on start up and while driving. There's no method to the madness!! I lost my f#@$ing job over this thing and I am at a total loss. I checked connections at throttle body wiggling wires and such and couldn't get light to come on. Same deal at gas pedal. Going to try to check grounds under the hood now. Any help much obliged. Or if you have a running driving vehicle for trade near harrodsburg KY let me know I'm sick of this thing. I've always loved Chevy's but this may be last straw!