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

converter problems?

Thread Tools
 
Search this Thread
 
Old Apr 5, 2006 | 05:29 PM
  #1  
GoFast908Z's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Mar 2005
Posts: 3,367
Likes: 1
From: Bay Area, CA
Default converter problems?

I'm having lockup issues in 4th. It'll work fine for about 10 min, then gradually unlock. freeway lockup around 1800rpm, then it will slowly increase to like 3000rpm+. I think the trans is fine, but this is the 2nd converter I've had problems with and another swap is so freaking expensive!

Should i try a warranty replacement or switch to Yank? I bought it from Speed Inc. about 6 months ago, put about 7k miles on it. Vig also offers a free stall change....i was thinking 3600 maybe
Reply
Old Apr 5, 2006 | 10:41 PM
  #2  
BubaGumpShrimp's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2003
Posts: 1,095
Likes: 0
From: edison, nj
Default

you may have false missfires with the lighter converter. Look for the thread "converter locks/unlocks randomly fix" or something similar to that.. should help you out..
Reply
Old Apr 6, 2006 | 07:35 PM
  #3  
Gold Z's Avatar
TECH Fanatic
iTrader: (3)
 
Joined: Nov 2001
Posts: 1,032
Likes: 0
From: Wichita Falls,TX
Default

Sounds like a tuning issue to me. The computer controls the lockup.
Reply
Old Apr 19, 2006 | 03:06 AM
  #4  
GoFast908Z's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Mar 2005
Posts: 3,367
Likes: 1
From: Bay Area, CA
Default

well i tried to see if it was a converter issue the next time it did it. Well, the revs soared, like when unlocked....however there was almost no power. I think the tranny is slipping.
Reply
Old Apr 19, 2006 | 04:44 AM
  #5  
cablebandit's Avatar
9 Second Club
20 Year Member
iTrader: (37)
 
Joined: Nov 2001
Posts: 7,903
Likes: 1
From: Cleveland, OH
Default

set the misfire detection to a high temp you will never reach and then try it. you need someone to do some logging on it first. I assume you have a vacuum modulated tranny correct?
Reply
Old Apr 20, 2006 | 07:26 PM
  #6  
GoFast908Z's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Mar 2005
Posts: 3,367
Likes: 1
From: Bay Area, CA
Default

yeah its vacuum modulated. I need to pull my engine bay mounted line-pressure gauge out by the window , and see what it reads the next time it does this. That will be a pain in the *** though, as I'll have to hold the gauge out the window on the freeway till it acts up.....probably a good 10 miles or more.

I shouldn't be getting misfires anymore, got new plugs and wires like a month ago. What else could cause it?
Reply
Old Apr 20, 2006 | 08:52 PM
  #7  
BubaGumpShrimp's Avatar
TECH Fanatic
iTrader: (1)
 
Joined: Jul 2003
Posts: 1,095
Likes: 0
From: edison, nj
Default

Originally Posted by GoFast908Z
yeah its vacuum modulated. I need to pull my engine bay mounted line-pressure gauge out by the window , and see what it reads the next time it does this. That will be a pain in the *** though, as I'll have to hold the gauge out the window on the freeway till it acts up.....probably a good 10 miles or more.

I shouldn't be getting misfires anymore, got new plugs and wires like a month ago. What else could cause it?

You can still have FALSE MISSFIRES. This doesnt mean that you are actually getting missfires. Any time you change the rotational assembly by making it lighter/heavier (in your case lighter--higher stalls are smaller than stock and about 20lbs lighter) this throws off the computer test paramaters(how it detects missfires) and creates FALSE MISSFIRES in turn unlocking your converter. Did you even look for the thread i told you about "Converter locks/unlocks randomly fix"
Reply
Old Apr 20, 2006 | 11:02 PM
  #8  
GoFast908Z's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Mar 2005
Posts: 3,367
Likes: 1
From: Bay Area, CA
Default

yes i did, but i think its not a converter issue now
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 Apr 21, 2006 | 06:45 PM
  #9  
Gearhead1's Avatar
TECH Apprentice
 
Joined: Jul 2005
Posts: 374
Likes: 0
Default

My sons car does the same thing and it set a code, something about a solenoid in the trans sticking. His is fine after it sits a while and cools down. He was told that the solenoid can be reached by just dropping the pan (not the valvebody) and it was about $60-$80. Sorry I can't be more specific about the name of the solenoid.
Reply
Old Apr 21, 2006 | 07:06 PM
  #10  
FLT's Avatar
FLT
FormerVendor
iTrader: (1)
 
Joined: Sep 2005
Posts: 6,620
Likes: 4
From: Wood Dale, Illinois
Default Fyi

Originally Posted by GoFast908Z
I need to pull my engine bay mounted line-pressure gauge out by the window , and see what it reads the next time it does this. That will be a pain in the *** though, as I'll have to hold the gauge out the window on the freeway till it acts up.....probably a good 10 miles or more.
Just a little trick I've learned. Take your gauge and duct tape it to the window. Holding a gauge in your hand and trying to drive is just a pain and not a good idea. Good luck!
Reply
Old May 7, 2006 | 03:12 AM
  #11  
GoFast908Z's Avatar
Thread Starter
TECH Junkie
iTrader: (12)
 
Joined: Mar 2005
Posts: 3,367
Likes: 1
From: Bay Area, CA
Default

Originally Posted by Vince @ FLT
Just a little trick I've learned. Take your gauge and duct tape it to the window. Holding a gauge in your hand and trying to drive is just a pain and not a good idea. Good luck!
good idea! i'm gonna try it next week. I know its idle pressure is low. ~50psi and Rock-On told me it should be like 70-100psi at idle.
Reply




All times are GMT -5. The time now is 04:59 AM.

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