Automatic Transmission 2-Speed thru 10-Speed GM Autos | Converters | Shift Kits
Sponsored by:
Sponsored by:

torque converter issue

Thread Tools
 
Search this Thread
 
Old Feb 23, 2015 | 04:07 AM
  #1  
gtfodave's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2012
Posts: 99
Likes: 0
From: Fort Myers, Florida
Default torque converter issue

Hey guys, having a slight fear my torque convertor may be on its way out.

When the convertor locks up and I'm slightly on the throttle or just idling at a higher speed (50) I feel a slight lugging or jerking in the car. First stalled auto car I've owned but I know the concept of a triple disc lockup, it doesn't feel normal at all. Any ideas or places to start?
Reply
Old Feb 23, 2015 | 11:00 AM
  #2  
mrvedit's Avatar
Moderator
15 Year Member
Photogenic
Photoriffic
Community Favorite
 
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
Default

Do you have a cam in the car?
If yes, this sounds normal. In many cam'ed cars you need to increase the lockup speed to prevent the lugging.
Reply
Old Feb 23, 2015 | 02:38 PM
  #3  
gtfodave's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2012
Posts: 99
Likes: 0
From: Fort Myers, Florida
Default

So change the speed the lockup kicks in at or is this something different
Reply
Old Feb 23, 2015 | 03:04 PM
  #4  
nj02z's Avatar
TECH Enthusiast
10 Year Member
Photogenic
Photoriffic
Shutterbug
iTrader: (6)
 
Joined: Jun 2012
Posts: 629
Likes: 26
From: nj
Default

Mine will do that also if lugged.
Reply
Old Feb 23, 2015 | 04:57 PM
  #5  
mrvedit's Avatar
Moderator
15 Year Member
Photogenic
Photoriffic
Community Favorite
 
Joined: Aug 2010
Posts: 7,323
Likes: 529
From: Ann Arbor, MI
Default

Originally Posted by gtfodave
So change the speed the lockup kicks in at or is this something different
Yes, determine at what RPM the engine stops lugging and set the lockup speed to that or a bit above. Obviously you need tuning software or have a tuner do this for you.
Reply
Old Mar 1, 2015 | 11:49 AM
  #6  
dreww's Avatar
On The Tree
iTrader: (1)
 
Joined: Apr 2012
Posts: 184
Likes: 1
From: burleson, tx
Default

I believe I had a stock tune on my car when I got it. It did have a stall convertor put in right before I bought the car.

It did need some tuning to fix all the stall convertor "side effects". I had to raise my overdrive lockup from 45mph to 55mph. Even with stock 2.73 gears and stock cam locking up at 45mph caused some issue. I raised it to 55. made a world of difference.
Reply
Old Mar 1, 2015 | 11:53 AM
  #7  
gtfodave's Avatar
Thread Starter
Staging Lane
 
Joined: Nov 2012
Posts: 99
Likes: 0
From: Fort Myers, Florida
Default

Thanks guys yea it seems like it's more normal than I thought. I'm gonna have famato raise the rpm and lockup a little then
Reply




All times are GMT -5. The time now is 01:04 AM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-6
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-7
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-8
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-9
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE