Question about 2000 Cadillac DeVille

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I have a 2000 Cadillac Deville that the torque converter code came up for......it takes forever to shift if at all, the ses light comes on for a few days at a time and now sometimes car won't start....code for the MAF came up so we cleaned that......now the car is misfiring and shaking like crazy....what n earth is wrong with my baby?

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Is the MAF code still there? More MAF codes than you had before? If it is running that bad, it should be setting a code for SOMETHING! If you cleaned the MAF, it is probably destroyed. GM MAFs don't like getting cleaned. Another thing to look for if you have the Northstar Engine is the ground cable that goes from the right (Passenger side) fender to the alternator bracket. These like to break and can cause all kinds of starting/running problems and multiple codes. Whenever I have a Northstar engine that is running really bad or failing to crank, I always check this first.

Posted on Mar 25, 2011

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I have 2000 cadillac deville and its overheating


P0741 - Torque converter clutch slip speed is exceeding limit; P1258 - High engine metal temperature. Sounds like you have transmission problems - torque converter problems can cause engine overloading, which in turn can cause the overheating. I would start with a complete transmission check before the engine is seriously damage the engine.

Sep 27, 2014 | 2000 Cadillac DeVille

1 Answer

What could cause my 2000 cadillac deville to run 2600rpm at 65mph...no error lights on/or codes


You may have a torque converter not locking. At low engine load conditions at hwy speeds to save gas the engine computer will tell the trans to lock the converter which results in lower rpm. Either the TCC solenoid is not locking the converter, or the PCM has failed and not sending signal to the TCC solenoid. If this has been going on over a week, im willing to bet the PCM has failed, otherwise a good one should catch the TCC if its not working and should throw a code.

Its my best guess with no tools to know for sure. Good luck :)

May 13, 2014 | 2000 Cadillac DeVille

1 Answer

2001 Cadillac Deville will not move forward or reverse. Started as a problem that would clear up after it warmed up. Problem progressed (a few days later) to very hard to get in moving forward from a...


Sounds like a failing pump in the transmission or a torque converter problem. Check for any error codes (DTCs) using a code checker to see what is setting the warning. Next stop is probably a transmission shop.

Jul 29, 2017 | 2000 Cadillac DeVille

1 Answer

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

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

How do I reset service engine light on 1999 cadillac deville


1996 on up OBD II systems require a scanner with the 'clear code' feature to reset the SES light.

Otherwise, one can cycle starting and stopping the engine 30 or 40 times to clear the SES light. This is not recommended, though, as it takes a long time.

Jun 03, 2010 | 1999 Cadillac DeVille

1 Answer

My 01 cadillac seville rpm are high when driving ses light says it the torque converter


could be torque converter but most of the time that causes lower rpm

when was your last trans service?
more than likely you have a trans clutch pack issue... not cheap!

Feb 23, 2010 | 2000 Cadillac DeVille

2 Answers

Code p0741


Torque Converter Clutch (TCC) Stuck Off.

You may have a faulty TCC solenoid valve.

Simply means the clutch in the torque converter does not engage when you reach cruising speed and will effect overall fuel economy.
Requires workshop/dealer repair.


Oct 12, 2009 | 2003 Cadillac Deville

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