Chevy/GMC Duramax 01-04 LB7 Discussion of Chevy and GMC Trucks with LB7 Duramax Turbo Diesel Engines

Dmax Leaking ATF

Old Feb 11, 2009 | 05:30 PM
  #1  
kazairl's Avatar
Thread Starter
|
Diesel Bomber
Joined: Sep 2008
Posts: 2,139
Likes: 126
From: Nebraska Panhandle
Default Dmax Leaking ATF

I've got a friend of mine that has an early Dmax(I think. I really have no clue what year it is.) It is leaking ATF out of the front of the tranny. From up in the bellhousing. I'm thinking tat one of the seals on the front pump or maybe around the converter is leaking?
Anybody else have some suggestions? We are going to be pulling the tranny soon to check it out. Sounds like its going to be a PITA. But we shall see!
 
Reply
Old Feb 12, 2009 | 12:05 AM
  #2  
2500HeavyDuty's Avatar
Super Moderator
Joined: Oct 2007
Posts: 14,872
Likes: 764
From: Houston, Tx
Default

when u do pull the trans, hope this helps

https://www.dieselbombers.com/durama...r-allison.html
 
Reply
Old Feb 26, 2009 | 10:50 PM
  #3  
hondarider552's Avatar
Diesel Fan
Joined: Jan 2009
Posts: 17
Likes: 1
Default

get a picture and post it up. could be a number of things..
 
Reply
Old Mar 3, 2009 | 03:51 PM
  #4  
beach_33's Avatar
Diesel Fan
Joined: Jun 2008
Posts: 15
Likes: 0
From: des moines
Default

it is probably one of the bolts that holds the bellhousing to the case. i cant remember exactly which one. i know it is one of the bottom. anyway it needs to have a copper washer put on it. simple fix
 
Reply
Old Mar 3, 2009 | 04:00 PM
  #5  
wildbill's Avatar
BOMBARDIER
Joined: Jul 2007
Posts: 12,809
Likes: 668
From: Billlings, MT
Default

Sounds like your going to have to pull the torque converter anyway. I'd go ahead and change the front seal out, just to avoid it going later.
 
Reply
Old Mar 3, 2009 | 05:23 PM
  #6  
kazairl's Avatar
Thread Starter
|
Diesel Bomber
Joined: Sep 2008
Posts: 2,139
Likes: 126
From: Nebraska Panhandle
Default

well It is fixed. Luckily I wasn't involved.

Turns out it was one of the seals around the TC. Simple fix once they got it down.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
|WYG|SS
24 Valve 2nd Gen Dodge Cummins 98.5-02
6
Apr 28, 2015 03:59 PM
gunman41mag
The Sportsmen's Lounge
5
Mar 12, 2015 03:46 AM
ChevyGuyForLife
Chevy/GMC Duramax 06-07 LBZ
1
Jan 13, 2015 12:29 PM
dieselbred
24 Valve 2nd Gen Dodge Cummins 98.5-02
2
Dec 21, 2014 03:14 AM
Stox5225
12 Valve 2nd Gen Dodge Cummins 94-98
1
Nov 18, 2014 01:04 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 11:25 AM.