UnrthdxDream

iTrader: (3)

So I was just cruisin on the highway ther other day at 70, kicked down into 3rd to pass some ppl, and everything was cool, was well on my way to passing them so i let my foot out before the tranny wanted to shift on into 4th. well i took my foot off the gas and instead of shifting back down into 4th the rpms dropped some but i could tell the tranny was still in 3rd. tapped the gas a bit and then it went into 4th. CRAP! it doesnt do this every time, as a matter of fact its not noticeable if i just keep my foot on the trottle and let the trans shift when it wants... but if i try to let off the throttle sometimes it does this "sticking" in 3rd gear business. the truck only has 40k on it... 33" tires, i do drive mountains alot goin back and forth to home over the continental divide... what should i check? should i just start saving for a FLT? i have a tune and im gettin Dusty to set all my trans setting back to stock. i was running 60% tq management daily.

TouchOfEvil04

iTrader: (13)

They do that. My 04 does it and the 00 i just bought does it as well.

UnrthdxDream

iTrader: (3)

well see this stuck out to me because i am used to how the tranny can be touchy with its shifts sometimes but this one was really bad.. but i guess it hasnt happened as bad again i guess ill just cross my fingers... can anybody give me advice as to how to hook up a tranny temp sensor? i want to keep an eye on it...

xlcooplx

iTrader: (26)

mine does it and my buddys truck does it as well.

TouchOfEvil04

iTrader: (13)

I can tell you for sure i have had mine in both tricls take as long as almost 10seconds to upshift before when i dropped the hammer then let out or whatever. Damn tranny is crazy mang.

FLT

iTrader: (1)

I would get a scan tool on it. Look at the data stream for what the computer is telling the transmission to do. If there is not a command via the computer the trans is only doing what it is being commanded to do.

UnrthdxDream

iTrader: (3)

fair enough... thanks guys ill try and find a scan tool... im not throwing any codes... i was just afraid it was the 3-4 clutch pack eating itself

95ImpSS

iTrader: (2)

If that happened, you'd know it... high rpms (noticeable @ 65+ mph), and 1 & 2 only (high revs in 3 or 4 w/ increasing TPS%).

I've noticed mine do what you're describing in my (former) '02 Yukon, and in my p-up. The PCM still commands 3rd for a few seconds (almost like its waiting for a transition) before it's satisfied with TPS%vsPressure. Then, it'll command 4th & TCC apply/lock (at least on my setup... some have TCC locking in 3rd, right before the 3-4 shift).

You may not have anything to worry about, but scan to be sure. Piece of mind calms the worries.

07 z71 silverado

when it gets cold around 30 to 40 in the mornings my truck doesnt want to shift into 4th for awhile then it just shifts into it.it did this on my old truck to.

white1

iTrader: (5)

Hmmm I dont recall mine doing that, but I think one of the previous ones did. I just let Vince deal with all that **** now with his fancy Vac mod and stuff