PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Converter Not Locking UP???

Thread Tools
 
Search this Thread
 
Old Jun 11, 2007 | 08:41 AM
  #1  
2002SilverZ28's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Jun 2004
Posts: 65
Likes: 0
From: Illinois
Default Converter Not Locking UP???

i have a FLT Stage 4 4L60e trans with a Yank SS400 converter. everything has worked fine on the car since i have had the setup and Speed Inc tuned the trans.

recently i have been getting the P0757 code. I talked with Chuck at FLT and he said that the converter sometimes throws this code and to delete it out of the system.....this has been done.

my problem is that for the last couple of weeks while i have been throwing the code my converter is not locking up. there are no SES lights on currently.

what could be causing this problem?
Reply
Old Jun 11, 2007 | 04:07 PM
  #2  
2002SilverZ28's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Jun 2004
Posts: 65
Likes: 0
From: Illinois
Default

any ideas????
Reply
Old Jun 11, 2007 | 04:40 PM
  #3  
Doc's Avatar
Doc
FormerVendor
iTrader: (9)
 
Joined: May 2003
Posts: 1,573
Likes: 0
From: Jacksonville, Fl
Default

Describe the rest of your setup...motor, etc. could be missfires causing the converter to unlock.
Reply
Old Jun 11, 2007 | 04:54 PM
  #4  
2002SilverZ28's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Jun 2004
Posts: 65
Likes: 0
From: Illinois
Default

Originally Posted by Doc
Describe the rest of your setup...motor, etc. could be missfires causing the converter to unlock.
running dart heads and mild cam (228/230 about 571 lift), 78mm FAST intake, kooks headers, gmmg, basic bolt ons.

i was thinking the misfires also, but it was locking up for the first 5 months that i had the trans/converter setup in the car.

the codes started poping up a couple of weeks ago.....they are now deleted....and the converter doesnt lock up anymore.

let me know if you need to know any other specifics.
Reply
Old Jun 12, 2007 | 04:36 PM
  #5  
2002SilverZ28's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Jun 2004
Posts: 65
Likes: 0
From: Illinois
Default

i listed some of the mods...let me know what you think from your experience
Reply
Old Jun 12, 2007 | 04:58 PM
  #6  
LS1curious's Avatar
TECH Enthusiast
 
Joined: May 2007
Posts: 538
Likes: 0
Default

Do you know if the Lock up converter valve update has been done to the trans ?



Originally Posted by 2002SilverZ28
i have a FLT Stage 4 4L60e trans with a Yank SS400 converter. everything has worked fine on the car since i have had the setup and Speed Inc tuned the trans.

recently i have been getting the P0757 code. I talked with Chuck at FLT and he said that the converter sometimes throws this code and to delete it out of the system.....this has been done.

my problem is that for the last couple of weeks while i have been throwing the code my converter is not locking up. there are no SES lights on currently.

what could be causing this problem?
Reply
Old Jun 12, 2007 | 05:32 PM
  #7  
Doc's Avatar
Doc
FormerVendor
iTrader: (9)
 
Joined: May 2003
Posts: 1,573
Likes: 0
From: Jacksonville, Fl
Default

I know you don't want to hear this but I would pull that tranny / converter and field strip it. If it locked up no problem for the first few weeks and now it is not...then I don't see a tuning issue. The heat/slippage will only last for so long before...boom.
Reply
Old Jun 13, 2007 | 07:15 AM
  #8  
2002SilverZ28's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Jun 2004
Posts: 65
Likes: 0
From: Illinois
Default

Originally Posted by LS1curious
Do you know if the Lock up converter valve update has been done to the trans ?
not sure, i have never even heard of it to tell you the truth.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jun 13, 2007 | 07:15 AM
  #9  
2002SilverZ28's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Jun 2004
Posts: 65
Likes: 0
From: Illinois
Default

Originally Posted by Doc
I know you don't want to hear this but I would pull that tranny / converter and field strip it. If it locked up no problem for the first few weeks and now it is not...then I don't see a tuning issue. The heat/slippage will only last for so long before...boom.
thats what i was hoping i wouldnt have to do. I have a feeling if it doesnt get better soon i am going to have to.
Reply
Old Jun 13, 2007 | 07:49 AM
  #10  
Frost's Avatar
FormerVendor
iTrader: (45)
 
Joined: Jul 2005
Posts: 5,913
Likes: 2
From: Richmond VA
Default

pull it before it ***** the bed and takes something else with it. People always put off pulling the tranny until it's rubbish and the cost of repair goes WAAAAAYYYYY up...
Reply
Old Jun 13, 2007 | 10:14 AM
  #11  
2002SilverZ28's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Jun 2004
Posts: 65
Likes: 0
From: Illinois
Default

Originally Posted by Frost
pull it before it ***** the bed and takes something else with it. People always put off pulling the tranny until it's rubbish and the cost of repair goes WAAAAAYYYYY up...
I still dont see how it could be the trans or the converter.....they are both less than a year old, were built to handle my setup, and were broken in properly.

has anyone had issues with FLT Transmissions or Yank converters?
Reply
Old Jun 13, 2007 | 11:16 AM
  #12  
Doc's Avatar
Doc
FormerVendor
iTrader: (9)
 
Joined: May 2003
Posts: 1,573
Likes: 0
From: Jacksonville, Fl
Default

FLT and Yank are both quality outfits with quality products and reputations. **** happens, you can control the amount of dammage by pulling it and inspecting it as soon as possible. Have you sprayed?
Reply
Old Jun 13, 2007 | 12:21 PM
  #13  
2002SilverZ28's Avatar
Thread Starter
Staging Lane
iTrader: (3)
 
Joined: Jun 2004
Posts: 65
Likes: 0
From: Illinois
Default

Originally Posted by Doc
FLT and Yank are both quality outfits with quality products and reputations. **** happens, you can control the amount of dammage by pulling it and inspecting it as soon as possible. Have you sprayed?
no spray at all on the car.

been to the track a couple of times....but that is about it.
Reply




All times are GMT -5. The time now is 11:54 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE