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

4000ss Problem

Thread Tools
 
Search this Thread
 
Old Apr 22, 2011 | 04:02 PM
  #1  
STK85's Avatar
Thread Starter
On The Tree
iTrader: (5)
 
Joined: Apr 2005
Posts: 181
Likes: 0
From: Sacramento, CA
Default 4000ss Problem

So my Yank 4000ss locks up about 5 seconds into 3rd gear and doesnt unlock .. If i tap the brakes, it does unlock but only for a split second then locks right back up...

I noticed it at the track this past week, It was only allowing me to run 12.0 @ 114. Then on the street. So i took it to the tuner, The tune is right on, its still set to stay unlocked in 3rd gear. So what gives? Is the converter toast ?
Reply
Old Apr 22, 2011 | 04:18 PM
  #2  
Dan's Avatar
Dan
11 Second Club
iTrader: (1)
 
Joined: Nov 2001
Posts: 1,431
Likes: 1
From: Buellton CA
Default

Why do u have it set to stay unlocked in 3rd gear? I really don't know your answer, I am just curious. I have seen most people say their converter locks up at 48mph(which mine does)
Reply
Old Apr 23, 2011 | 12:02 AM
  #3  
LS1CALIBOY's Avatar
11 Second Club
iTrader: (13)
 
Joined: Apr 2008
Posts: 276
Likes: 0
From: From NorCal...Stationed in SoCal
Default

I'm having a similar problem with mine. It feels like it is clunking when coming out of lock up but once I apply the brakes it stops. No clue myself why it is doing this either I just got my Converter restalled from an ss4000 to a ss3600 600 miles ago aswell as the tranny refreshed so this is throwing me for a loop... I'm gonna check my converter bolts to see if they backed off any but other than that I don't know else to look for...
Reply
Old Apr 23, 2011 | 12:22 AM
  #4  
dannyz's Avatar
TECH Fanatic
20 Year Member
 
Joined: Oct 2005
Posts: 1,131
Likes: 76
From: olympia, wash
Default

My itty bitty stall has done that from like day one, over 40,000 miles ago.
I may be wrong, but I think thats part of having a stall.
Most people that ride with me never even notice.
Reply
Old Apr 24, 2011 | 04:46 PM
  #5  
andrew(02ss)'s Avatar
Teching In
iTrader: (4)
 
Joined: Aug 2008
Posts: 35
Likes: 0
From: arlington, texas
Default

probly somewhere in the tune. i have a pt4000 and mine will lock up at 36mph
in 4th.. it will lock up in 3rd only if i have the shifter in 3rd.. took half a day of tuning to finally get everything right
Reply




All times are GMT -5. The time now is 12:26 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