My 04 silverado is bogging down on take off,while driving n at idle. I replaced the plugs n air filter which were both HORRID. still had the problem. A friend who is a very good mechanic told me the c

May help to clean throttle body,and tps sensor,if truck stalls, then pick,s back up.

What's the best thing to clean with?

Carb cleaner,dont,spray your tps ,take it loose and then spray carb cleaner up throttle body,hand wipe tps,or replace it.

Thanks a lot, hopefully it'll b good when I pick it up tomorrow. If not I will def try this.

My 04 silverado is bogging down on take off,while driving n at idle. I replaced the plugs n air filter which were both HORRID. still had the problem. A friend who is a very good mechanic told me the catalytic converters are prob clogged up. Aft removing them they didn't look too bad for what I know. But there was a lot of carbon buildup beyond them. I'm getting my exhaust fixed tomarrow if that's not it what would be your guess. I was able to drive it about 10 miles but at around20-30 mph.

Sorry I didn't know if to put the whole question up

Usally ,if it were a bad caty,your o2 sensor would over load it with gas,and yes stop it up,but that dosen,t sound like your problem,i think i would check the tps sensor,it will do this, my 99 silverado done it,drove me nut,s after replacing every caty and exhasut,and a bunch of sensors, i cleaned throttle body ,and put new tps on ,and still driving.