Torque Converter Clutch Solenoid where in the hell is it? - JeepForum.com
Search  
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > TJ Wrangler Technical Forum > Torque Converter Clutch Solenoid where in the hell is it?

Introducing MONSTALINER™ UV Permanent DIY Roll On Bed Line~Artec JK 1 TON SWAP~Advance Adapters SYE Kits

Reply
Unread 02-26-2011, 06:14 PM   #1
gstensler
Registered User
2002 TJ Wrangler 
 
Join Date: Jun 2010
Location: Orangevale,CA
Posts: 9
Torque Converter Clutch Solenoid where in the hell is it?

I have an 02 TJ and the TCCS appears to be bad. It only has 62000+- miles. It drives fine but I have noticed a drop in gas milage, to be expected.

I took it to a local shop to be diagnosed and was told it was the mechanical portion of the TCCS itself, from what he could tell. So as we all do I started looking into if I can do it. After doing what I could, as far as research, I can not even find a place (web site, books, ect) that can show me how to access it.

So can anyone tell me? Is it in the tranny itself, on the outside or just flat out hidden. As you can tell I'm not a tranny guru. Should I even attempt this task or just man up and take it in.

My next question is, is there a better one (performance) that I should replace this with.

It is my daily driver but anything to better my jeep would be worth it to me.

Please help if you can

gstensler is offline   Reply With Quote Quick reply to this message
Unread 02-27-2011, 03:33 AM   #2
ratmonkey
R.I.P.
 
ratmonkey's Avatar
1997 ZJ 
 
Join Date: Dec 2006
Location: , Pennsylvania
Posts: 19,794
The tcc solenoid is on the side of the valve body in the trans.

What was the exact code pulled...not really a code in the system that will tell you there's a "mechanical" problem with the solenoid. There are a few other parameters that can prevent lock up.
__________________
'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

ratmonkey is offline   Reply With Quote Quick reply to this message
Unread 02-27-2011, 11:08 AM   #3
gstensler
Registered User
2002 TJ Wrangler 
 
Join Date: Jun 2010
Location: Orangevale,CA
Posts: 9
The code that shows is the PO740. The shop told me that they ran several different test and that would be there guess without dropping the tranny to look inside.

I have tried several things that other people have mentioned; checked the wire connection at the tranny and even replaced the wire connection. Checked the tranny fluid level, was told if it is over filled that could cause this code.

About the time this happened I had replaced an aux tranny cooler, because of a leak. I have asked before if this could have anything to do with it and nobody seems to think so. What is your thought?

If you have anyother thoughts please shoot them my way as I am open to anything at this point.
gstensler is offline   Reply With Quote Quick reply to this message
Unread 02-27-2011, 11:12 AM   #4
SpaceWrangler
Gnarly Adventurer
 
SpaceWrangler's Avatar
2001 TJ Wrangler 
 
Join Date: Nov 2005
Location: Where the Girls Dance Different With Familiar Grace
Posts: 1,467
The solenoid itself is here, on the valve body inside the pan...

__________________
"Two things are infinite... the Universe and human stupidity. And I'm not sure about the Universe."
-Albert Einstein
SpaceWrangler is offline   Reply With Quote Quick reply to this message
Unread 02-27-2011, 04:11 PM   #5
ratmonkey
R.I.P.
 
ratmonkey's Avatar
1997 ZJ 
 
Join Date: Dec 2006
Location: , Pennsylvania
Posts: 19,794
All that code tells you is that the clutch did not engage properly.

there are codes specifically for the solenoid failing, that its not one of them.

Check your brake switch and throttle position sensor. Verify fluid level as well.
__________________
'97 zj 5.2, some stuff, some other suff, and some things that even work sometimes.

ratmonkey is offline   Reply With Quote Quick reply to this message
Unread 02-27-2011, 04:46 PM   #6
Knuckelhead
AFSOC Retired
 
Knuckelhead's Avatar
2000 TJ Wrangler 
 
Join Date: Aug 2005
Location: Colorado
Posts: 15,316
Quote:
Originally Posted by ratmonkey View Post
All that code tells you is that the clutch did not engage properly.

there are codes specifically for the solenoid failing, that its not one of them.
I believe P0743 is the code for loss of 12 vdc to the PCM from the torque converter lockup solenoid...
__________________
TSB Information: http://www.automd.com/tsb/jeep_m/wrangler_mm/2000_y/
Knuckelhead is offline   Reply With Quote Quick reply to this message
Unread 02-28-2011, 11:45 PM   #7
gstensler
Registered User
2002 TJ Wrangler 
 
Join Date: Jun 2010
Location: Orangevale,CA
Posts: 9
What would the brake switch have to do with it?
gstensler is offline   Reply With Quote Quick reply to this message
Unread 03-01-2011, 12:28 AM   #8
bruteboy
Registered User
 
Join Date: May 2010
Location: british columbia ca
Posts: 481
Quote:
Originally Posted by gstensler View Post
What would the brake switch have to do with it?
in some vehicles,when the pcm receives a signal from the brake switch(brakes applied)the pcm will disengage the torque converter clutch to prevent the engine from stalling.
if the brake switch is faulty or missadjusted,it may keep the tcc from engaging.
bruteboy is offline   Reply With Quote Quick reply to this message
Unread 03-02-2011, 02:03 PM   #9
gstensler
Registered User
2002 TJ Wrangler 
 
Join Date: Jun 2010
Location: Orangevale,CA
Posts: 9
Got it. Thanks for the info. That will be the next thing to check.
gstensler is offline   Reply With Quote Quick reply to this message
Unread 06-29-2011, 04:33 PM   #10
indytrucks
Junior Member
 
indytrucks's Avatar
2001 TJ Wrangler 
 
Join Date: Dec 2008
Location: Waukegan, Il
Posts: 94
I know this is an old thread but, would the brake switch keep the torque convertor from unlocking and or engaging too early?
indytrucks is offline   Reply With Quote Quick reply to this message
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.
Note: All free e-mails have been banned due to mis-use. (Yahoo, Gmail, Hotmail, etc.)
Don't have a non-free e-mail address? Click here for a solution: Manual Account Creation
Email Address:

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.


Thread Tools


Suggested Threads





Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.