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

4l80e problem on my first test drive

Thread Tools
 
Search this Thread
 
Old Jun 25, 2009 | 01:03 AM
  #1  
turbo kid's Avatar
Thread Starter
On The Tree
iTrader: (9)
 
Joined: Jun 2007
Posts: 101
Likes: 0
Default 4l80e problem on my first test drive

I just went on my first test run after my 1.5 year build an have a problem.When the trans is in OD and I put the brakes on the motor dies when I come to a stop.I am thinking the converter(yank sc3000)isn't unlocking.I did check the switch at the pedal and yes there is 12 volts untill I apply the brakes.Can the tune /program in the computer be the problem or does it sound like a bad solinoid?Any advise please?Thanks
4l80e trans
Yank sc3000
Speartech re worked GM harness and his adaptor harness for 4l60e to a 4l80e
Reply
Old Jun 25, 2009 | 08:37 AM
  #2  
slow67's Avatar
Gingervitis Addict
15 Year Member
iTrader: (2)
 
Joined: Nov 2004
Posts: 2,399
Likes: 3
From: DFW
Default

Originally Posted by turbo kid
I just went on my first test run after my 1.5 year build an have a problem.When the trans is in OD and I put the brakes on the motor dies when I come to a stop.I am thinking the converter(yank sc3000)isn't unlocking.I did check the switch at the pedal and yes there is 12 volts untill I apply the brakes.Can the tune /program in the computer be the problem or does it sound like a bad solinoid?Any advise please?Thanks
4l80e trans
Yank sc3000
Speartech re worked GM harness and his adaptor harness for 4l60e to a 4l80e
Have you uploaded a 4L80E tune? You need a segment swap.

FYI the brake pedal should have no effect on the tq converter with an 80e. It will unlock at any time you are under ~5% throttle.
Reply
Old Jun 25, 2009 | 10:07 AM
  #3  
turbo kid's Avatar
Thread Starter
On The Tree
iTrader: (9)
 
Joined: Jun 2007
Posts: 101
Likes: 0
Default

yes jessie bubb did the tune.(mail order)
Reply
Old Jun 25, 2009 | 04:42 PM
  #4  
veee8's Avatar
8 Second Club
iTrader: (40)
 
Joined: Aug 2005
Posts: 1,861
Likes: 0
From: Raleigh,North Carolina
Default

I thought it was the other way around, no voltage UNTIL the brake pedal is pushed???
Reply
Old Jul 2, 2009 | 03:09 AM
  #5  
turbo kid's Avatar
Thread Starter
On The Tree
iTrader: (9)
 
Joined: Jun 2007
Posts: 101
Likes: 0
Default

To let you guys know I did call wait4me about the tune he sold me and was told that John Speartechs 4l60e to a4l80e adaptor was wired wrong(plug and play)and that his tune was for sure right.So what I did is I pulled my computer out of my car and drove to Speed Inc sat down with Larry and he flashed my computer with a tune from his collection of tunes from pass customers.I then went home installed the computer and guess what?It's runs and shifts just like a stock car.All I can say is use Speartech and Speed Inc!Wait4me is a waist of time and money.I wouldn't let wait4me tune or mod the harness on my lawn mower.PM me for the long true story!
Reply




All times are GMT -5. The time now is 08:23 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