Jeep wrangler torque converter clutch solenoid replacement

Hi all,

I have a 2013 Unlimited Sahara. I also have the P0741 code with CEL on. My OBD says "Circuit Stuck Off". I checked the tranny fluids and it's fine. Next step before major work is I want to replace the torque converter clutch solenoid. I have a couple basic questions:

1. Is there more than one solenoid on the Valve Body and if so, how do I know which is the one I want to replace?
2. I don't have a manual and tried googling but cant find how I access this solenoid. Anyone have a picture or brief explanation?
3. Is this solenoid a plug'n play part or is there some reflash or other activity that needs to be done after swap?
4. I see multiple buying options on the net for Torque Converter Clutch Solenoid ranging in price from $39 - $271. This is whats causing my confusion to ensure I buy the right one.

Thanks for all your help in advance.

Dan

devil is in the details -
P0741-TORQUE CONVERTER CLUTCH CIRCUIT PERFORMANCE -
Set Condition:
While in Slip Mode operation, the TCM detects TCC slippage greater than a calibrated value

So it is necessary to see if NO TCC solenoid control OR the slip speed input to output sensors is above threshold.

Have you been 4 wheeling, towing, Hilly terrain, any other codes?

Vehicle is STOCK -

I only had Jeep for 3 weeks but no towing or abnormal terrain.

i really need some info on how to replace the torque converter clutch solenoid on my 2013 Wrangler Unlimited Sahara. Can anyone share??

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 :cheers2:

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.

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.

The solenoid itself is here, on the valve body inside the pan...

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.

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...

What would the brake switch have to do with it?

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.

Got it. Thanks for the info. That will be the next thing to check.

I know this is an old thread but, would the brake switch keep the torque convertor from unlocking and or engaging too early?

Only 4 1/2 year old thread....

I'm having a problem with my '97 TJ 4-banger that seems related to the torque converter. Basically the clutch won't engage at stop, when the engine is warm (seems to work normally when run while the engine is cold). Of course this means every time I come to a stop light, the engine freaks out and stalls. I have to throw it in neutral when coming to a stop. Sometimes when I put it back in drive to go, it stalls out again unless I give it a little gas at the same time.

I know nothing about auto transmissions (except how to check the fluid). The fluid level is good and it's clean. The tranny was rebuilt about 18 months ago. I've looked at the brake switch. It seems fine (it's moving normally), but I have no idea how to remove it. It did throw a code a couple of months ago - P0740 or P0743 or something like that. Checked fluid, cleared the code, and it has not come back. I took a look at the solenoid wires. They're attached, is all I can tell. It looks like they're just stuck in there - not sure how to pull or re-attach. Maybe I should check for signal on them, but I don't know what to look for ...

Hey, direwolf, how did you solve the problem? My step-daughter's '94 is having the same exact issue. Buddy of mine at the shop suspects the tcc solenoid but didn't want to pull it just yet.

0740 codes of

SO my JKU 2011 has this code and the hot oil light came on so I had it towed home I can't find anything about the TCCS how to check or location any advise

You may have to pull the torque converter to check its operation. Hot oil usually means a frozen stator. The TCCS is in the valve body as shown above.