Question about 2000 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.

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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.

Posted on May 24, 2011

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Why is my deville running 2900 rpms when running at a speed of 70 mph?

run the fault codes to check for OD operation and TCM problems . IT could be a VSS sensor as well but this should show up in the codes.

Aug 06, 2014 | 2005 Cadillac Deville

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2000 cadillac deville not shifting into overdrive/ no codes

Shift B solenoid faulty. If replacing one then I suggest replacing shift A solenoid as well. They're located in the lower vavle body of tranny. Hope this helped.

May 13, 2014 | 2000 Cadillac DeVille

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What could cause my 2000 cadillac deville to run 2600rpm at 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

92 Sedan DeVille will not shift

First brakes rust you have to clean if can or replace.Shift problem happen even driving every day.In side cable you have to spry WD 40.where is shifter.

Apr 05, 2013 | 1992 Cadillac DeVille

1 Answer

I have a 2000 Cadillac Deville that the torque converter code came up 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...

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.

Mar 25, 2011 | 2000 Cadillac DeVille

1 Answer

I have a 1994 cadillac deville just had power steering line replace and now my car will not change gear for me what do i need to to or replace now

shift solinoids. but first check the transmission fluid. also this has the 4.9l right? auto zone sells shift solinoids for $30 each . if it is 4.9l it has the 4t60e transmission. i think thees shift solinoids are in the side transmission cover. when u replace the solinoids use a multimeter to check the wiring harness. disconnect the wiring harness located on top of tranny. unplugg shift solnoids and conncet multimeter to connector terminals put meeter on continuity it should not beep . if it does internal wiring harness is bad.( BEFOR DOING ABOVE : CHECK PCM CODES. ON INSTRAMENT CLUSTER HOLD WARMER BUTON AND OFF BUTTON DOWN FOR A FEW SECONDS AT THE SAME TIME A SERISE OF CODES SHOULD DISPLAY WRIGHT THEM DOWN AND EMAIL ME AT BRANDONDAY87@YAHOO.COM. FOR FURTHER ASISTANCE.

Mar 13, 2010 | 2000 Cadillac DeVille

1 Answer

2001 deville is throwing code p0741. seems to shift ok... could it just be the solenoid?

it means Torque Converter Clutch Circuit Performance/Stuck Off basically the clutch solenoid is bad

Nov 25, 2009 | 2001 Cadillac DeVille

2 Answers

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!

Aug 16, 2009 | 2000 Cadillac DeVille

1 Answer

Why does my 1994 cadillac sedan deville go in reverse but not int

lost my overdrive,car runs fine,wont shift after it gets up to 35-40mph in drive,to drive it i have to use l1,l2,etc.where are relys located or solinoids?

Mar 22, 2009 | 1994 Cadillac DeVille

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