Modified XJ Cherokee Tech XJ (84-01)
All modified tech questions. If it modifies your XJ beyond stock parts ask it here.
Sponsored by:
Sponsored by:

What would cause this? (Tcase fluid looks like liquid metal)

Old Jul 26, 2013 | 11:06 PM
  #1  
BBuchta's Avatar
Thread Starter
Member
 
Joined: Aug 2012
Posts: 124
Likes: 1
From: Denver, CO
Year: 1999
Model: Cherokee
Engine: 4.0
Default What would cause this? (Tcase fluid looks like liquid metal)

I replaced my T case fluid with new ATF about 1K miles ago when I installed a new SYE tail shaft. (I sheered the splines off the last one at the yoke) I rebuilt both driveshaft's at the same time. I have had no issues since, no noises, no driveline vibes. The chain is in good condition. I went to check the fluid level this evening and found it to be silver... I drained it and it all looked like this. Full of metal, not a hint of red or brown tint. All the bearings are tight, everything moves freely, no binding, and everything seems ok. Should I refill it with new fluid and not worry about it? If not where would there be a problem?

Thanks in advance for the ideas.
Attached Thumbnails What would cause this? (Tcase fluid looks like liquid metal)-dsc07359-medium-.jpg   What would cause this? (Tcase fluid looks like liquid metal)-dsc07364-medium-.jpg   What would cause this? (Tcase fluid looks like liquid metal)-dsc07366-medium-.jpg   What would cause this? (Tcase fluid looks like liquid metal)-dsc07362-medium-.jpg  
Reply
Old Jul 27, 2013 | 01:37 AM
  #2  
ZINGGG's Avatar
CF Veteran
 
Joined: Oct 2011
Posts: 4,440
Likes: 3
From: Seal Beach, CA
Year: 1996
Model: Cherokee
Engine: 4.0 HO Straight Six
Default

What kind of fluid did you use? ATF or Dex/Merc?

How much driving and how hard of driving have you done since you put that in?
Reply
Old Jul 27, 2013 | 07:18 AM
  #3  
SeriousOffroad's Avatar
CF Veteran
 
Joined: Apr 2008
Posts: 13,952
Likes: 17
Model: Cherokee
Default

Open up the case and inspect every part.
Reply
Old Jul 27, 2013 | 07:35 AM
  #4  
JeepingDan's Avatar
CF Veteran
Premium Member
15 Year Member
Liked
 
Joined: Apr 2009
Posts: 18,786
Likes: 14
From: CT.
Year: 88
Model: Comanche (MJ)
Engine: 4.0 HO
Default

X2
Something is grinding away.
Reply
Old Jul 27, 2013 | 09:19 AM
  #5  
salad's Avatar
Herp Derp Jerp
Premium Member
 
Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Default

Is the sludge ferrous? Stick a magnet in it, ser if any comes out. If it's aluminum maybe you got lucky and your chain was dragging.

Something's ****ed.
Reply
Old Jul 27, 2013 | 09:46 AM
  #6  
SeriousOffroad's Avatar
CF Veteran
 
Joined: Apr 2008
Posts: 13,952
Likes: 17
Model: Cherokee
Default

Pads worn out/missing from the shift or mode forks.
Reply
Old Jul 27, 2013 | 11:28 AM
  #7  
BBuchta's Avatar
Thread Starter
Member
 
Joined: Aug 2012
Posts: 124
Likes: 1
From: Denver, CO
Year: 1999
Model: Cherokee
Engine: 4.0
Default

I filled it with Dex/Merc. I drive it hard, its supercharged, its not a daily driver and I put well over 200 miles of the 1000 on it in 4 low. Stuck a magnet in it this am and its metal not aluminum. Its so fine it looks like dust. You cannot feel any of the particles, just see them glimmer in the light. I guess I'll pull the case apart and see if I can tell if anything looks unusually worn.
Reply
Old Jul 27, 2013 | 09:49 PM
  #8  
BBuchta's Avatar
Thread Starter
Member
 
Joined: Aug 2012
Posts: 124
Likes: 1
From: Denver, CO
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Disassembled everything I'm guessing bearings, I've got 2 that have play in them, the planetary and all other gears look normal.
Reply
Old Aug 3, 2013 | 09:15 PM
  #9  
thakmfb's Avatar
Seasoned Member
 
Joined: Jul 2011
Posts: 324
Likes: 1
From: Richmond, Va
Year: 1992
Model: Cherokee
Engine: 4.0 liter I6
Default

you check the case to make sure the chain was not dragging the case?
Reply
Old Aug 3, 2013 | 09:55 PM
  #10  
xjsnake's Avatar
CF Veteran
 
Joined: Aug 2010
Posts: 1,150
Likes: 1
From: Nashville, TN
Year: 1997, 1993
Model: Cherokee
Engine: 4.0L
Default

Time for a rebuild
Reply
Old Aug 3, 2013 | 10:26 PM
  #11  
Kris smith's Avatar
CF Veteran
 
Joined: Jan 2012
Posts: 1,130
Likes: 0
From: Ramona ca
Year: 1990
Model: Cherokee
Engine: 4.0
Default

Idk bout cases but at work I rite only see trans pans look like that and there ok but that's Benz not jeep
Reply
Old Aug 4, 2013 | 08:26 AM
  #12  
thakmfb's Avatar
Seasoned Member
 
Joined: Jul 2011
Posts: 324
Likes: 1
From: Richmond, Va
Year: 1992
Model: Cherokee
Engine: 4.0 liter I6
Default

@ Kris, I have never seen a trans pan look like that and it be "o.k."
Reply
Old Aug 5, 2013 | 07:24 AM
  #13  
BBuchta's Avatar
Thread Starter
Member
 
Joined: Aug 2012
Posts: 124
Likes: 1
From: Denver, CO
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Well I rebuilt it (new bearings and seals) and so far so good. I've flushed and refilled it several times to get out some of the remaining metal even though I cleaned the parts when it was disassembled. After the 1st flush the fluid is staying clean. I've never seen bad bearings cause that much metal in the fluid.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
jmsummers2012
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
56
Jun 12, 2025 02:04 AM
jpmarine6786
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
43
Oct 22, 2023 04:16 AM
ROCKRIDGE 4WD
Vendor Showcase
1
Dec 22, 2018 09:49 AM
tleed
Stock Grand Cherokee Tech. All ZJ/WJ/WK Non-modified/stock questions go here!
3
Oct 4, 2015 01:20 PM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 

Thread Tools
Search this Thread

All times are GMT -5. The time now is 02:04 PM.