Question about 1994 Cadillac DeVille

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Torque convertor clutch error code

I have a 1994 cadillac deville i checked the codes and its giving me the torque convertor clutch error what does that mean

Posted by louisortega1 on

  • Anonymous Mar 21, 2014

    What does code P0741 mean?

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frank thomas wilson

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Trans convertor solenoid bad inside the transmission

Posted on May 24, 2009

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Could you please send me a picture and price for a torque converter for a 1998 Cadillac De Ville my service engine soon light is on


http://www.torqueconverter1.com/Products.html

That is a link for torque converters...call for pricing....

If your service light is on, is it giving you a TCC solenoid fault code? ...If so, the the TCC solenoid is a $40 part buried inside the transmission. It causes the convertor stator & rotor to move into very close proximity, lessening convertor slip and thus giving "overdrive". You can drive the car without it, but if you need an emissions check the car will fail. Mechanically, it will cost you 1 - 2 mpg and cause a few hundred more rpm on the highway...Thought i would mention that because you might not actually need a converter.

Jul 15, 2011 | 1998 Cadillac DeVille

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My 2000 cadillac deville will not shift into overdrive. throws no codes. what could be wrong? thanks for your time.


Is it not shifting into overdrive or is the (TCC) torque convertor clutch not coming on? If it is and O/D concern it could be a cracked shift solenoid, this will not set a code because the PCM only monitors electrical failures with solenoids. If it is a TCC concern the PCM should set a code related to a comparison between vehicle speed and engine RPM. Should. You need to have somebody access the on-board diagnostic program to diagnose the problem.

May 23, 2011 | 2000 Cadillac DeVille

1 Answer

Have a 1993 Cadillac Deville with an error code e39. Can I get help diagnosing this problem?


THAT CODE IS FOR THE LOCK UP TORQUE CONVERTER CLUTCH ,NOT WORKING /MALFUNCTION DUE TO SOLENOID PROBLEM OR CONVERTOR INTERNAL TRANSMISSION PROBLEMS. SEALS, INPUT SHAFT,O'RINGS, VALVEBODY ISSUES .MOST LIKELY NOT A SIMPLE FIX.

THIS IS SOMETHING THAT AN EXPERIENCED TECH NEEDS TO CHECK OUT .

HOPE THIS HELPS

Aug 08, 2010 | 1993 Cadillac DeVille

2 Answers

Check light can on code P1860 on 2000 cad seville sts


That code represents the torque convertor clutch solenoid circuit is at fault

Mar 28, 2010 | 2000 Cadillac Seville

1 Answer

Toqueconvertor do i need fluids or new one service engine is on and the code is torque convertor


This code usually comes on when you have a bad tourque convertor solonoid problem, not the tourque convertor itself. You may notice it when the car is running and you come to a stop or when you are taking off a lot of times it feels like a dead spot in the transmission.

Good Luck and I hope this helps you. Allen

Oct 04, 2009 | 2001 Cadillac DeVille

1 Answer

Error codes


Her is the definition and a list of possiable causes.


Code P1740-Torque converter clutch did not lock up when the PCM sent the command. Enabling conditions: No engine or transmissions codes are present, vehicle speed was under 70 MPH, TPS was under 33% open. When the PCM commanded the torque converter to lock, no change was detected in engine speed. Blocking action: This code can block the following monitors: none.
Testing: Check torque converter solenoid for proper operation.
P1740 TCC O/D SOL PERFORMANCE (GAS)
Theory of Operation
The Torque Converter Clutch (TCC) Solenoid is used to engage the TCC which improves fuel economy.
When Monitored
The Torque Convertor Clutch (TCC) and Overdrive Clutch (OD) will be tested each time the PCM requests TCC engagement in 3rd gear and OD.
Set Condition
The DTC will set if the expected RPM drop is not achieved while attempting to engage TCC or OD. This indicates a malfunctioning torque convertor or overdrive clutch.
Possible Causes
* ENGINE DTCS PRESENT
* TRANSMISSION DTCS PRESENT
* TRANSMISSION TEMPERATURE TOO COLD
* OIL PAN CONTAINS EXCESSIVE DEBRIS
* 3-4 SHIFT SOLENOID
* SHAFT OR SEAL DAMAGE
* TCC SOLENOID
* TORQUE CONVERTER

Sep 25, 2008 | 2005 Dodge Ram 3500

1 Answer

Transmission light cod P0740


PO740 is a TCC/lockup code.TCC stands for Torque Convertor Clutch.In between the engine and transmission is a torque convertor.Inside the torque convertor is a clutch.This clutch engages to eliminate slippage inside the torque convertor.When a malfunction occurs in the system,which is activated by solenoids,and a computer,a TCC code will set.There is a diagnostic route specifically for that code,to determine if the malfunction is electrical,mechanical,or hydraulic.

Sep 05, 2008 | 2000 Dodge Caravan

1 Answer

1992 Cadillac Deville Sedan


i have two codes on my 92 cadillac sadan deville that read e 12 and e 96. i understand what they both mean. e12 is 'no distributor signal', and the other e 96 is 'torque convertor is overstrewsed'. i know that the toruque convertor is a big project itself, so im goin to send that into the professionals. but i might be able to fix the distributor, if it is the cap, or a false ground wire which hopefully it is. there is about 170,000 mi, and have gone threw alot of parts that i installed myself, but im not goin to let her go yet she still got alot of miles to go. i just need help on checking out the distributor cap for replacement.

Jul 01, 2008 | 1988 Cadillac Sedan DeVille

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