Hemi Killer

iTrader: (6)

It's my fault because I did the tb coolant by-pass mod. It just sucks going 35 and being stuck at 3000+rpms. It's kinda like its in 1st gear sometimes.

KeukaZ71

i know mine starts to stick every 3 months or so because of carbon build up. try some TB or carb cleaner, a toothbrush, and a rag to clean all that black build up out of the TB. if that doesn't work, maybe it is the TB bypass mod.

Chingon

iTrader: (1)

It dipped down into the 40's last night and mine didn't stick shut I did the TB bypass mod too.

SnakeOiler

iTrader: (6)

That doesn't sound like a throttle sticking, more like a transmission not shifting.

chris99gmc

well i haven't done the bypass mod and Mine sticks. It started to stick last winter, and then I cleaned the flap. Now it's starting to stick a little bit again.

Chingon

iTrader: (1)

Try this...

I hear XLR8NSS has some...but he won't share.

parish8

iTrader: (6)

all the way into the 40's huh? brrrr.

it is 0deg and droping here right now.

5.3 racer16

here its in the 40s and i feel that the trhottle sticks like it kind of gets stuck and have to press it hard to move it , but that has been a problem i have always had.

GMPartsGuy

Hey man, I work for a GM Dealership Service and Parts Dept. I've seen this a lot of times. And it IS due to carbon build up around the inner walls of the TB which cause the blade to stick. We, usually adjust the Throttle Linkage screw on the side just a little, to keep from having to charge the customer a labor charge (it only takes about 5 min. to do this). GM has published a Service bulletin about the problem, and a fix for it. Involving a replacement TB if the vehicle is under warranty. If not they advise use of a "throttle body cleaner" and proper cleaning....aka "bull". You can modify it and never have the problem again.

Remove the TB and "hone" out the inside walls of the TB and lightly shave around the edge or the "valve" itself. Kind of like Honing and Polishing a head or cylinder.

I have 2 new still in shrink wrap Throttle Bodies that will fit your truck, I'd sell you if you want to do the modify-repair on either the new or old one. That way you always have a spare bolt-on replacement. I'd take $50 for it. They sell for around $300 new at a GM Dealer.

Later.

nekkid_hill_billy

no **** should be 35 at like 800 rpm not 3000