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PO741 is off and what does this code mean

1998 cadillac deville

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Code p0741 refers to torque converter clutch (TCC) solenoid ---performance or stuck off ===causes --wiring ---TCC solenoid

Posted on Feb 14, 2014

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Posted on Jan 02, 2017

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change the air fow senser.

Posted on Jul 06, 2009

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SOURCE: Cadillac Deville 2000- Engine check light code P0741

If you like go ahead and let someone sell and replace your transmission but here is my suggestion! Check around and see if you can find a minor vacuum leak! This can simply be the big round hose that goes from the fuel injection to the power brake hub! This is normally a push in connector which has about a 1/2 inch hose clamped on it! If there is any kink or the connector is not in correctly a leak will occur and the transmission will shift rough as though you will be thrown out of the vehicle! Try unplugging this connector and plug it back in hard and straight and maybe you will be lucky and fix your problem. If the vacuum is correct your transmission will shift better than you have ever experienced!

Posted on Aug 16, 2009

bschilz
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SOURCE: code po741 on a cadillac deville dhs 2001

P0741 Torque Converter Clutch Circuit Performance or Stuck Off

Your car actually has a viscous converter clutch inside the torque converter instead of a (mechanical) torque converter clutch to lock up the torque converter for fuel economy improvement. You will see it referred to as the VCC and/or TCC.....

The TCC/VCC has a variety of components in the system including an electrical circuit supplying the transmission, the apply solenoid inside the trans, the torque converter itself, the PCM that controls the apply, etc. It is impossible to diagnose from afar. Unlikely that it is a "sensor" inside the trans as the PCM controls the VCC apply and uses engine and trans data that it receives from a variety of sources. If a "sensor" had failed the trouble code for that sensor would be setting......

Something as simple as the brake switch can cause the VCC to not apply correctly. There is a safety switch on the brake pedal that activates the brake lights and disconnects the VCC circuit. If it is misadjusted then the trans cannot apply the VCC. Lots of other trouble shooting items on the VCC system. If you don't have a service manual and cannot trouble shoot the system, I would recommend a Cadillac dealer as they have the trouble shooting information for the specific VCC that the Cadillac 4T80E trans has that a trans shop is simply not familiar with. No sense working on the trans until you actually know what is wrong.

Posted on Jan 13, 2010

duane_wong
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SOURCE: what is code po741?

P0741 Torque Converter Clutch Circuit Performance or Stuck Off

This means that the lock up Torque Converter is not locking up as it should at highway speed or 35 mph and up (I learned that figure in school for Oldsmobile automobiles).

It can lead to less fuel efficiency.

Hope this helps.

Posted on Jul 05, 2010

  • 1 Answer

SOURCE: 1998 Cadillac Deville low refrigerant a/c

I have a 1999 Cadillic Deville. The low Frefrigerant indicater come on after about 15 minutes of disconnecting the battery power. Each Time I reset the power the air conditioner comes back on for a while then goes out. I have taken it into the local auto repair place and they find no problem with the unit.
Could this be a intermittent connection to the computer. They have replaced both sencors and the problem persists. Where is the computer located on the car that handles this AC sensor message?

Posted on Jul 14, 2010

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My service engine light is on, took it was put on the machine and came back with the code po741 which was said to be a transmission problem. Took it to a transmission shop and was told that my...


Subject:
Service Engine Soon (SES) Light On, Diagnostic Trouble Code (DTC) P0741, Torque Converter Clutch (TCC) Excessive Slip, Transaxle Chuggle, Slip/Surge (Inspect/Replace Internal Transaxle Components) #04-07-30-034 - (08/06/2004)
Models:
1998-2002 Cadillac Eldorado
1998-2004 Cadillac Seville
1999-2004 Cadillac DeVille
2000-2003 Oldsmobile Aurora
there is a write up on this about 3/4 page down.

http://www.cadillacforums.com/forums/cadillac-forum/t-107360.html

Oct 25, 2010 | 2003 Cadillac Deville

1 Answer

1997 cadillac deville check engine light gives an error code of PO741 . Is this a transmission shift cylinder or Solenoid problem?. It just came on one morning & i can't figure it out. Does anyone...


Typically - a Transmission flush and filter replacement, along with removing the TCC and cleaning and bench testing it will cure your issue.

If there is that much material floating around in the transmission to plug things up, you might want to consider selling it, or paying for a transmission rebuild down the road.

How many miles on it? has the transmission been serviced at the recommended intervals?

Take Care

Oct 04, 2010 | 1997 Cadillac DeVille

1 Answer

Codes po135 po741


code P0135 heated O2 sensor bank 1 sensor 1 , heater circuit ( front O2 sensor driver side ) replace O2 sensor

code P0741 this is a transmission code TCC ( torque converter clutch ) stuck off. most likely you need to replace the TCC switch.

Aug 09, 2010 | 1996 Cadillac DeVille

1 Answer

What is code po741?


P0741 Torque Converter Clutch Circuit Performance or Stuck Off

This means that the lock up Torque Converter is not locking up as it should at highway speed or 35 mph and up (I learned that figure in school for Oldsmobile automobiles).

It can lead to less fuel efficiency.

Hope this helps.

Jul 05, 2010 | Cadillac DeVille Cars & Trucks

1 Answer

Cadillac code po741service light on


Yes the solenoid is in the transmission although the trans pan is the only thing needed to be removed to get to this solenoid

May 29, 2010 | 2000 Cadillac DeVille

1 Answer

Current codes on in 2004 cadallic deville b0429 b1819 p0741


b0429 rear seat temperature control,b1819 rear wiper motor,p0741 clutch converter

Sep 13, 2009 | 2004 Cadillac Deville

1 Answer

1998 Deville


If you have an EVAP leak, you need to follow the evap hoses and look for cracked lines that could be leaking. There is a possibility of a bad purge solenoid, or a bad NVLD pump. You may need to take it to someone who can test all that stuff.

Aug 07, 2009 | 1999 Cadillac DeVille

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