LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

trans leak

Thread Tools
 
Search this Thread
 
Old Apr 27, 2013 | 08:35 PM
  #1  
tonypaul's Avatar
Thread Starter
TECH Regular
iTrader: (2)
 
Joined: Dec 2009
Posts: 414
Likes: 0
From: Austin Texas
Default trans leak

I just finished swapping a LS4/4t653dh into my Lambo Diablo kit car. The transmission has a leak right where the cooler line goes into the trans. Is there a O-ring or something in there?

It just had a little drip at first, then I tightened the fitting about a 1/4 turn and now its leaking really bad. I used the factory lines to an external cooler/fan but never took off the trans hoses off when I did the swap so I have no idea how the fitting is sealed. I would like to know what I need to fix it before I take off the hose.

Thanks~
Reply
Old Apr 27, 2013 | 09:04 PM
  #2  
baltsk8er69's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Dec 2011
Posts: 615
Likes: 0
From: Abingdon,MD
Default

Yes. Move the plastic cover off the end of the line. You will reveal the e clip. Use an oring tool to pull the clip. Pull the line out. I believe its a 19 mm wrench to unscrew the fitting. They're around 30 bucks from the dealer.
Reply
Old Apr 27, 2013 | 09:32 PM
  #3  
tonypaul's Avatar
Thread Starter
TECH Regular
iTrader: (2)
 
Joined: Dec 2009
Posts: 414
Likes: 0
From: Austin Texas
Default

Originally Posted by baltsk8er69
Yes. Move the plastic cover off the end of the line. You will reveal the e clip. Use an oring tool to pull the clip. Pull the line out. I believe its a 19 mm wrench to unscrew the fitting. They're around 30 bucks from the dealer.
Thanks! Ok just to be clear- do I need a whole replacement line or just a o-ring?

Here is a pic of where its leaking-
trans leak-ls4stuff5-004a.jpg
Reply
Old Apr 28, 2013 | 10:26 AM
  #4  
baltsk8er69's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Dec 2011
Posts: 615
Likes: 0
From: Abingdon,MD
Default

I run a shop so I used an oring from a fuel line repair kit. The oring is inside fitting. But they don't sell juat the oring. Maybe go to your local parts store and buy an oring assortment. Much cheaper than buying the new fitting
Reply
Old Apr 28, 2013 | 11:36 AM
  #5  
tonypaul's Avatar
Thread Starter
TECH Regular
iTrader: (2)
 
Joined: Dec 2009
Posts: 414
Likes: 0
From: Austin Texas
Default

Thanks! I got a O ring kit somewhere around here, I will pull it apart and see if I got the right size....
Reply




All times are GMT -5. The time now is 05:08 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