Transmission problems (TCU or TCM) - JeepForum.com

 
LinkBack Thread Tools
post #1 of 5 Old 06-02-2004, 12:23 PM Thread Starter
remicman
Registered User
 
Join Date: Jun 2004
Posts: 1
Question Transmission problems (TCU or TCM)

I have a 1999 4.7 grand cherokee laredo. Check engine light went on. Shifting problems. Took it into transmission shop. They said I need a TCM (transmission control module).

Does anyone know what these go for?

Thanks

remicman is offline  
Sponsored Links
Advertisement
 
post #2 of 5 Old 06-02-2004, 12:54 PM
greasefingers
Registered User
 
greasefingers's Avatar
1994 ZJ 
 
Join Date: Sep 2003
Location: Northern VA, USA
Posts: 8,237
A much better question would be: WTF does a TCM do? According to my Haynes manual, the PCM controls the shifting.

Cheers Steve

94 Black Laredo 4-Liter with QuadraTrac (42RE trans & NP249 TC) 200,000 + miles purchased new

88 Cherokee 2-door with 5speed manual 139K miles(deceased) purchased new
greasefingers is offline  
post #3 of 5 Old 06-02-2004, 06:46 PM
nagos420
Registered User
 
Join Date: Feb 2004
Location: Chicago Area
Posts: 48
Does the car shift when you take your foot off the gas? thats what mine did the part was like 10buick from the dealer and was fixed in 5mins
nagos420 is offline  
post #4 of 5 Old 06-03-2004, 08:14 PM
Astorm
Member
 
Join Date: Jan 2004
Posts: 200
The TCM is a real module, and its to the left of the Coolant Tank on the WJ's. Its electronic, so I guess it can wear out. Check it out, its got heat sinks on it too so it cools it better. It had a huge connector that goes from it to the PCM.
No Idea How Much they Cost.

Andy

2000 JGC Limited 4.7
Quadra-Drive
Addco
Flowmaster 50-Series
K&N FIPK/RamIt
Every Option
Astorm is offline  
post #5 of 5 Old 06-03-2004, 08:31 PM
greasefingers
Registered User
 
greasefingers's Avatar
1994 ZJ 
 
Join Date: Sep 2003
Location: Northern VA, USA
Posts: 8,237
On ZJ's it's under the dash panel to the left of the steering column. I just want someone to me what it does

Cheers Steve

94 Black Laredo 4-Liter with QuadraTrac (42RE trans & NP249 TC) 200,000 + miles purchased new

88 Cherokee 2-door with 5speed manual 139K miles(deceased) purchased new
greasefingers is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
transmission problems dex1 ZJ Grand Cherokee Forum 1 11-29-2008 10:21 PM
transmission problems dex1 ZJ Grand Cherokee Forum 1 11-29-2008 07:47 PM
Transmission problems. HELP! jmack549 WK Grand Cherokee & XK Commander Forum 9 10-30-2008 11:01 PM
'98 transmission problems gbt102 ZJ Grand Cherokee Forum 4 08-24-2006 08:11 PM
Transmission Problems JeepGuyRyan ZJ Grand Cherokee Forum 5 08-09-2002 07:45 PM

Posting Rules  
You may post new threads
You may 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
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome