Yep, another tranny problem thread
03-09-2007, 08:20 AM
#11
TECH Apprentice
iTrader: (1)
Join Date: May 2003
Location: Keller, TX
Posts: 339
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by KySilverado
OD is slipping badly. Driving home tonight up a small grade around 70 mph. I give it a little gas and it unlocks the TC and slip city. Had been acting a little strange for a couple weeks now. Mild acceleration in cruise kind of felt like the TC was stalling, now know that it was OD slipping. Also building a little more heat than usual. Still pulls fine 1st through 3rd and with the TC locked.
I am seriously bummed out. Gonna get hold of FLT tomorrow and see what my options are. I really do not want to do a 4l80 but then again don't want to pull transmissions every year.
I am seriously bummed out. Gonna get hold of FLT tomorrow and see what my options are. I really do not want to do a 4l80 but then again don't want to pull transmissions every year.
I'm still running the Stock (except for shift kit and vett servo's and lots of trans tuning) transmission, I have over 20,000 hard *** miles on it at 11.5 to 12.0psi of boost, and also remember Tourqe Managment is your friend during shifts I have TM pulling timming down to -2.0deg at the shifts and it shifts nice and firm.
03-09-2007, 08:43 AM
#12
Originally Posted by LBSBLOWN
Have you Data logged and tune your TCC pressures and settings, I have found that the stock GM programing allows the TCC to slip 50 to 100 rpm almost all the time and that they try to lock it up at WOT in third gear with the stock programing.
I'm still running the Stock (except for shift kit and vett servo's and lots of trans tuning) transmission, I have over 20,000 hard *** miles on it at 11.5 to 12.0psi of boost, and also remember Tourqe Managment is your friend during shifts I have TM pulling timming down to -2.0deg at the shifts and it shifts nice and firm.
I'm still running the Stock (except for shift kit and vett servo's and lots of trans tuning) transmission, I have over 20,000 hard *** miles on it at 11.5 to 12.0psi of boost, and also remember Tourqe Managment is your friend during shifts I have TM pulling timming down to -2.0deg at the shifts and it shifts nice and firm.
I do need to look at the tune I think. Particularly the TCC unlock at cruise. It is a very firm jolt dropping down into OD cruising.
03-09-2007, 09:51 AM
#15
Originally Posted by silver-mod-o
I'[d be looking more at the converter than the trans honestly... my Vig let go in fron of my FLT as well... just FYI
03-09-2007, 09:58 AM
#16
Originally Posted by LBSBLOWN
So yo don't have this table or your not using it?
TCC DUTY CYCLE MINIMUM.
TCC DUTY CYCLE MINIMUM.
Thanks for the TCC table. I need to revisit those settings.
03-09-2007, 10:06 AM
#17
Originally Posted by KySilverado
Still pulls like a **** 1st through 3rd just like it always has so don't believe its the converter.
03-09-2007, 10:58 AM
#19
Originally Posted by silver-mod-o
my lock up clutch **** the bed, so it pulled fine thorough 1st, and 2nd as well but as soon as it tried to lock up in 3rd, it got ugly...
03-09-2007, 11:00 AM
#20
Originally Posted by trever1t
First one I've heard about with any issues too. I hope it's something cheap and simple 
It is kind of unusual as far as the failures I've read about.