Go Back   LS1TECH > VEHICLE SPECIFIC FORUMS > LS4 Performance
Sign in using an external account
Register Forgot Password?
Search

LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Torque Converter Problems

Reply
 
Thread Tools Search this Thread
Old 10-18-2009, 12:45 PM   #1
TECH Addict
Garage is empty, add now
 
AlabamaGuy's Avatar
 
Trader Rating: 5
Join Date: Jun 2009
Posts: 2,802
Default Torque Converter Problems

Ok guys, we've been chasing a problem for a few months now and I've posted about it a few times. My torque converter comes in and out of lock repeatedly while cruising. It locks up before it needs to and all kinds of crazy stuff. My tuner went in and changed all the tables to get it to quit but it's like it just ignores the tune. Lately I've been noticing what feels like the converter has loostened up. I tried stalling the car up the other day and got over 3k RPM out of it just sitting still. Is this normal? I even roll back like a manual on moderate inclines.
__________________
06 MCSS- SOLD
99 4Runner- DD on 33's
85 Toyota Corolla AE86- Track/Drift
AlabamaGuy is offline   Reply With Quote
Old 10-18-2009, 01:32 PM   #2
TECH Enthusiast
Garage is empty, add now
 
Trader Rating: 1
Join Date: Jul 2009
Location: Sa, TX
Posts: 646
Default

Quote:
Originally Posted by AlabamaGuy View Post
Ok guys, we've been chasing a problem for a few months now and I've posted about it a few times. My torque converter comes in and out of lock repeatedly while cruising. It locks up before it needs to and all kinds of crazy stuff. My tuner went in and changed all the tables to get it to quit but it's like it just ignores the tune. Lately I've been noticing what feels like the converter has loostened up. I tried stalling the car up the other day and got over 3k RPM out of it just sitting still. Is this normal? I even roll back like a manual on moderate inclines.
Mine stops at 2.5K your just might be from the tune. As for the role back, my Imp does it too and dont have any problems of the sort. So yea i think those parts are normal.
Vectus is offline   Reply With Quote
Old 10-18-2009, 03:31 PM   #3
TECH Enthusiast
Garage is empty, add now
 
Count of Monte Carlo's Avatar
 
Trader Rating: 0
Join Date: Apr 2007
Location: Albany, NY and NePA PENNA
Posts: 697
Send a message via AIM to Count of Monte Carlo
Default

They normally stall that high. Sometimes mine goes to 3200 on the brake stall. Not for nothing though the converter has a special kind of logic to it that GM has been using for years. They partially lock it up, supposed to make the driveline operate even smoother, and on front drives, when you release the gas it will unlock till you get back on it. I notice that when it goes into 4 cylinder mode the converter will unlock momentarily.... otherwise with a steady load on it and steady cruise it should stay in its partial lock up, unless you are lugging the engine, then it will go to full lock up. To add to further confusion, I noticed that when I cancel the cruise with the cancel button, it seems as if it is in 4th and lock up coasting.... which is cool because the exhaust burbles
__________________
Lorenzo

'10 DODGE Challenger R/ T Classic 57M6 "Blue Whale"

'92 PONTIAC Grand Prix SE 34M5 "Red Lobster"
Count of Monte Carlo is offline   Reply With Quote
Old 10-18-2009, 03:47 PM   #4
TECH Addict
Garage is empty, add now
 
AlabamaGuy's Avatar
 
Trader Rating: 5
Join Date: Jun 2009
Posts: 2,802
Default

Quote:
Originally Posted by Count of Monte Carlo View Post
They normally stall that high. Sometimes mine goes to 3200 on the brake stall. Not for nothing though the converter has a special kind of logic to it that GM has been using for years. They partially lock it up, supposed to make the driveline operate even smoother, and on front drives, when you release the gas it will unlock till you get back on it. I notice that when it goes into 4 cylinder mode the converter will unlock momentarily.... otherwise with a steady load on it and steady cruise it should stay in its partial lock up, unless you are lugging the engine, then it will go to full lock up. To add to further confusion, I noticed that when I cancel the cruise with the cancel button, it seems as if it is in 4th and lock up coasting.... which is cool because the exhaust burbles
Mine does the same thing with the burbling lol. My problem is still that it modulates in and out of lockup. Even though we do something like set lockup only above 50 mph it'll still lock up below it. It just doesn't make sense.
__________________
06 MCSS- SOLD
99 4Runner- DD on 33's
85 Toyota Corolla AE86- Track/Drift
AlabamaGuy is offline   Reply With Quote
Old 10-18-2009, 07:52 PM   #5
TECH Fanatic
Garage is empty, add now
 
TheMonteMan's Avatar
 
Trader Rating: 0
Join Date: Apr 2009
Location: nj
Posts: 1,138
Default

mine also does the roll back on inclines as well. dont know the actual stall speed though.
__________________
2006 monte carlo ss
1980 monte carlo 406 sbc
TheMonteMan is offline   Reply With Quote
Old 10-18-2009, 07:52 PM
LS1Tech
Pontiac Firebird




Paid Advertisement
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
How do I determine if my torque converter switch is working? Ksths2 Conversions & Hybrids 11 04-28-2014 10:22 AM
Slipping or Torque Converter problem? kyphur Automatic Transmission 2 10-12-2011 05:33 PM
Yank converter lock up problem?? what next ktktransam Automatic Transmission 22 04-16-2008 11:26 PM
'04 GTO auto problems.... torque converter locks/unlocks alot GTA91 Pontiac GTO 2004-2006 5 04-12-2005 12:57 PM
Help!! Torque Converter "Shudder"? Dean98TA Automatic Transmission 6 05-17-2004 12:50 PM


Tags
07, 2004, 2009, 2010, camero, carlo, converter, corvette, feels, monte, performance, problem, problems, ss, torque


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off



Join Ls1Tech

All times are GMT -5. The time now is 12:16 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Service - Privacy Statement - JOBS
Emails & Contact Details