Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here XJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.

Transmission died while driving - no line pressure

Thread Tools
 
Search this Thread
 
Old Aug 1, 2016 | 11:17 AM
  #1  
dkdontforget's Avatar
Thread Starter
Newbie
 
Joined: Aug 2016
Posts: 2
Likes: 0
Model: Cherokee
Default Transmission died while driving - no line pressure

Hey everyone, first post here but have been lurking for a while.

I have a 94 XJ 230k miles auto

i was on a long 5 hour driving trip through hilly/mountainous roads and out of nowhere its like i shifted my XJ into neutral while driving

Pulled over, would not go in drive, 3, 1/2, or reverse. i have a aftermarket tranny cooler, she was not running hot, not loaded down, and it wasnt shifting hard. This is whats going on

While shifting from park to drive the RPMs briefly fluctuate like it wants to go in gear but nothing happens

Pulled the TCM fuse ran it through the gears and still no movement
Tried adjusting the throttle cable
Made sure the gear shift linkage is still connected
Plenty of transmission fluid
Fluid is still bright red, changed it about 3 months ago

Heres what i did notice, i pulled the transmission lines on both sides of the cooler and there is no line pressure at all, no fluid flowing.

so doing some research it could be 2 things, ive seen some posts about the front pump dying, but it usually gives some type of warning, or the torque converter.

Any suggestions where to start or what to look at?

Thanks in advance
Reply
Old Aug 1, 2016 | 01:03 PM
  #2  
CCKen's Avatar
CF Veteran
 
Joined: Aug 2010
Posts: 8,357
Likes: 101
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Do this cold fluid level check. If the trans fluid level does not drop to somewhere near the tip of the dipstick the torque converter has malfunctioned or the trans oil pump has malfunctioned.


Make sure the trans fluid level is at or above the full/max mark before starting the test. If it isn't add a bit of trans fluid to bring it up.


Name:  rev1Visio-Drawing1.jpg
Views: 549
Size:  475.9 KB
Reply
Old Aug 1, 2016 | 03:29 PM
  #3  
dkdontforget's Avatar
Thread Starter
Newbie
 
Joined: Aug 2016
Posts: 2
Likes: 0
Model: Cherokee
Default

Originally Posted by CCKen
Do this cold fluid level check. If the trans fluid level does not drop to somewhere near the tip of the dipstick the torque converter has malfunctioned or the trans oil pump has malfunctioned.


Make sure the trans fluid level is at or above the full/max mark before starting the test. If it isn't add a bit of trans fluid to bring it up.


Thanks for the reply, i just tried it and no fluid movement at all, is there a way to tell if its the TC or pump without taking it out first?
Reply
Old Aug 1, 2016 | 04:00 PM
  #4  
CCKen's Avatar
CF Veteran
 
Joined: Aug 2010
Posts: 8,357
Likes: 101
From: Canton, MI
Year: 1999
Model: Cherokee
Engine: 4.0
Default

Originally Posted by dkdontforget
Thanks for the reply, i just tried it and no fluid movement at all, is there a way to tell if its the TC or pump without taking it out first?

Not that I know of, but if you are going to pull the transmission to replace the pump you should replace the torque converter as well.


Sorry.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
nabtastic
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
34
Sep 4, 2016 07:51 PM
MyNamesKal
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
6
Mar 31, 2016 06:59 AM
Reese_XJ
Introductions
3
Jan 20, 2008 07:23 AM

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



All times are GMT -5. The time now is 02:10 AM.