TJ: Transmission Line Leak - Gauge - Great Lakes 4x4. The largest offroad forum in the Midwest

Go Back   Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Jeep Tech
GL4x4 Live! GL4x4 Casino

greatlakes4x4.com is the premier Great Lakes 4x4 Forum on the internet. Registered Users do not see the above ads.
Search
Reply
 
Thread Tools Search this Thread
Old July 3rd, 2013, 05:15 PM   #1
Catnip 0_o
Martial Artist
 
Catnip 0_o's Avatar
 
Join Date: 10-14-10
Location: Roseville, MI
Posts: 374
iTrader: (2)
Mentioned: 0 Post(s)
Default Transmission Line Leak - Gauge

2002 TJ 4.0L

About a month ago, I installed a Sunpro Transmission Temperature Gauge in the Jeep. I cut the input line to the transmission, installed a T fitting, and plugged the sender unit into the top of the T. Well after a wheeling trip out to the Dunes last week, I have begun to develop a leak at the T Fitting. It is getting all over the exhaust, causing smoke and a bad smell, and is getting progressively worse.

I pulled the T fitting completely off last night and used teflon tape on all of the threads and reinstalled. As far as all of those threaded spots go, it hasnt leaked from them since. But the actual sender unit itself, has begin to leak. Has anyone else ever experienced this?

As you can see in the attached picture, that is the "exact" spot where it is leaking from. Before it was that spot and the threads, now it is just that spot. I don't think it is possible to fix, but if so, maybe you guys can shed some light on this topic for me.

I think I may just have to pull the sensor and plug up the hole with a fitting, but do they sell close ended fittings to block off that port?

Thank You
Attached Thumbnails
Click image for larger version

Name:	IMG_0521.JPG
Views:	72
Size:	104.9 KB
ID:	107764  
Catnip 0_o is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old July 5th, 2013, 06:16 PM   #2
Ironman Offroad
Cool parts peddler
 
Ironman Offroad's Avatar
 
Join Date: 07-29-10
Location: Saginaw, Michigan
Posts: 1,512
iTrader: (11)
Mentioned: 6 Post(s)
Default

Put some teflon based pipe dope on the sealing surface of the sender and on the threads on the sender (seals and lubricates). Learned that from the pipe fitters in the family.
Ironman Offroad is offline   Reply With Quote
Old July 5th, 2013, 08:28 PM   #3
chadcooper55
expert jeep disassembler
 
chadcooper55's Avatar
 
Join Date: 08-28-08
Location: kent city mi
Posts: 8,025
iTrader: (20)
Mentioned: 10 Post(s)
Default

It is leaking from between the threaded "nut" and the tubing? I am looking from my phone so it is hard to tell. It is flare isn't it?
chadcooper55 is offline   Reply With Quote
Old July 5th, 2013, 08:38 PM   #4
crazymanme2
Member
 
Join Date: 05-13-13
Location: Michigan
Posts: 49
iTrader: (2)
Mentioned: 1 Post(s)
Default

+1 on flare or a special fitting that sender goes in.Mine had a special fitting that the probe seated in & the outside was pipe thread.
crazymanme2 is offline   Reply With Quote
Old July 6th, 2013, 12:33 PM   #5
Catnip 0_o
Martial Artist
 
Catnip 0_o's Avatar
 
Join Date: 10-14-10
Location: Roseville, MI
Posts: 374
iTrader: (2)
Mentioned: 0 Post(s)
Default

Yes it is a flare fitting, I will need a special adapter?
Catnip 0_o is offline   Reply With Quote
Old July 6th, 2013, 12:52 PM   #6
skife
Senior Member
 
skife's Avatar
 
Join Date: 02-12-07
Location: cedar springs mi
Posts: 5,113
iTrader: (5)
Mentioned: 0 Post(s)
Send a message via AIM to skife Send a message via MSN to skife
Default

probably the flare

also, undo all of what you done and move your temp gauge to the output of the transmission, the input would give you the temperature after everything has been cooled by the cooler.
skife is online now   Reply With Quote
Old July 7th, 2013, 09:03 PM   #7
sandfox4
napadave
 
sandfox4's Avatar
 
Join Date: 09-15-08
Location: wakarusa indiana
Posts: 371
iTrader: (9)
Mentioned: 1 Post(s)
Default

does it use a cappilary tube like a manual water temp sender ? it looks like it, if so it is kind of a flare fitting, but you should only have to tighten it up to get it to stop leaking, tear it apart ,clean it up, put sealer on it and torque it tight.
sandfox4 is offline   Reply With Quote
Reply
Great Lakes 4x4. The largest offroad forum in the Midwest > 4x4 Talk > Jeep Tech

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 09:11 PM.


Powered by: vBulletin, Copyright 2000 - 2012, Jelsoft Enterprises Ltd.
User Alert System provided by Advanced User Tagging (Lite) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.
Page generated in 0.12066 seconds with 42 queries