Last post on Dec 04, 2013 at 1:04 PM
You are in the Cadillac DeVille
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Cadillac DeVille, Sedan
#2542 of 2635 Re: 1997 Cadillac DeVille [maz28]
Feb 15, 2011 (11:09 pm)
From 95 thru 99 they are essentially about the same. There was some re-design done for 2000 on the Northstar motor. To make it run on regular gas, and different thread and longer headbolts to try to keep the head gaskets from failing so much. 2000 thru 2005 all about the same. In 2006 they changed the name from Deville to DTS and changed body style some, but underneath they are still about the same car.
I've had, Devilles all, a 95, 97, and now 2005. My wife wants one.
The 95 had several problems. I didn't keep the 97 very long because I didn't have a warranty on it. When the 2005 was going out of the factory warranty, I bought an extended warranty. It has had a lot of things fail on it. Oh, the headlamp lens also fall off 97. I glued mine on.
I would not own one without an extended warranty.
You could offer $3,000 on that 97. Which, in my opinion, is about all it is worth. That is a 14 year old car. And you could look at it as having that other $3,000 in your pocket for potential future repairs. And, don't make an offer if you don't want to buy it, because you just might get it for $3,000.
#2543 of 2635 Re: 1997 Cadillac DeVille [bolivar]
Feb 16, 2011 (4:06 pm)
Thank you, one last question for you tho, how many miles do u think i could get out if that 97 with 63k miles that im looking at before it starts having major problems?
#2544 of 2635 Re: 1997 Cadillac DeVille [maz28]
Feb 16, 2011 (6:23 pm)
I'm good, but not that good. A Cadiallic could have a major problem tomorrow or 10 years from now.
In general, except for the head gasket and oil consumption problems, a Northstar motor is bullet proof. You can try to 'blow out the carbon' for the oil consumption, or just ignore it. Oil is cheap, even if it uses a quart every 1000 miles. A head gasket failure on a 97 - I would sell it for parts. Other than that, 150,000 miles on a Northstar is easy, mechanically. Valves, cam, pistons, etc don't wear out.
In general the transmission behind a Northstar is also bullet proof. Except for the solonids failing. It has 3 of them. The two shift ones can be reached by dropping the pan. As I said before, the lockup one has to have the motor and tranny pulled to get to it. 'A $40 part buried $2,000 deep' because of the labor to pull it.
Everything electronic could fail at any time. And look at it - everything is an electric button with a sensor or motor on the other end. Dash, radio, heat/AC, seats, rear air shocks, etc, etc, etc. And the motor and tranny mechanically are very strong, but there are sensors all over both. Crank sensors sometimes cause trouble, but these are on the outside front by the crank and are easily changed.
The sway bar linkages sometimes fail. Rear air shocks fail. But these type things go on all cars as milage accumulate.
#2545 of 2635 Re: 1997 Cadillac DeVille [bolivar]
Feb 16, 2011 (7:19 pm)
man ur seriously helpful as hell. no lie u seem like a beast i wish u were my neighbor haha. So how do u feel about the new models (DTS STS CTS) because i was considering a 2002 CTS, not a fan of the down size but i cant afford a DTS
#2546 of 2635 Re: 1997 Cadillac DeVille [maz28]
Feb 18, 2011 (6:58 pm)
The STS is just a more expensive sedan that never sold well. Isn't it a rear wheel drive?
The DTS is just the Deville under a 'new' name.
The CTS, I'm not sure. Wife wants a Cadillac, and wants a big 'tank'. The CTS is smaller, would be fine for me, but she's not very interested. Our small town lost its Cadillac dealer. Two days ago was in larger nearby city, and looked at the CTS-V. Detuned Corvette supercharged motor. 560 something HP. I don't like to test drive unless I really am interested, but I almost test drove this.
Sell the wife's Deville. Sell my Corvette. Keep my truck. Buy an automatic CTS-V 4 door. (Sticker says it has a $2,600 gas guzzler tax.) Be able to keep all/both (CTS and truck) in my garage. Wife doesn't have much interest in this, starts talking about an Escalade. Not gonna do an Escalade.
#2547 of 2635 INSTRAMENT READINGS ON 2002 DE VILLE
Mar 18, 2011 (10:06 pm)
Transmission life indicator has stayed at 100% since this car was purchased over two years ago.
I asked at dealership if replacing the whole message board would correct this problem and the response was they were unsure why the transmission life was not dropping and didn't know if replacing the message board would solvie the problem. This is the Cadillac dealership where I bought the car. Have other owners of vintage 2000 - 2005 Deviles had this problem and how were they able to correct?
#2548 of 2635 Re: INSTRAMENT READINGS ON 2002 DE VILLE [bremertong]
Mar 18, 2011 (11:57 pm)
Ok, on older Cadillacs you could not see the Tranny life oil % unless you went into the diagnostic mode. Sometime, they took the coolant temp display off, and put the tranny % on in its place.
In general the tranny life does not drop like the oil life. Staying at 100% is normal. In the 97 service manual I think it says somethink like it will stay at 100% unless it has been run hot or after the milage goes over 100,000 miles.
With that in mind, our 2005 Deville with 54,000 miles has something like 75 or 85% displayed on the tranny life. I think this hasn't changed since we got it about 4 years ago. And, since it was used, I have no idea what the car might have incurred before we got it.
Look in the service section of your owners manual. I'm pretty sure the Cadillac transmission can go 100,000 miles before needing service. I'm not going to do anything to the tranny fluid until it hits 100,000 miles.
Ok, I looked at the service manual. It says don't change the fluid and filter until you get the message 'Service Transmission' or something like that.
Then, be sure you get someone that knows a Northstar tranny to service it. And, in my opinion, NEVER do a 'flush'. This is pumping who knows what thru your tanny. Just do a dump and refill. To dump a Northstar tranny you must drop the pan which will get a couple of quarts out. Then, there is a plug inside that, when removed, will dump several more quarts. Many service people do not know about this plug.
#2549 of 2635 Re: INSTRAMENT READINGS ON 2002 DE VILLE [bolivar]
Mar 20, 2011 (9:20 pm)
Thanks very much Bolivar. More and better information than I could have hoped for and much appreciated. At the moment the only place I have this car serviced is at the Cadillac Dealership service Department. I bought the car two years ago with 28,000 miles on it and now has a little over 36,000. The other item on the instrament panel that is erratic is the average miles per gallon which does not read out or reset or read properly until the car has heated up and on the road for about ten minutes. Any ideas on why that would happen?
I have an extended warranty good til end of March 2012 and dealership has offered to change the entire message center if I wish but suggest it might not correct either the transmission life or average miles per gallon indicators in question. They also feel that my transmission fluid looks fine and suggest I not change until the car reaches 50,000 miles which would be around 2013.
#2550 of 2635 Re: INSTRAMENT READINGS ON 2002 DE VILLE [bremertong]
Mar 22, 2011 (3:35 am)
Ok, since posting, I've driven the 2005, and the tranny display is 69%. And I'm pretty sure it was more than this when we got the car, and it has dropped some. (This is my wife's car, and I don't keep track of everything.) I think we got the car at about 34,000 miles, and the tranny life was less than 100% at that time.
Of course, this display can be reset. Easily, by holding the Reset button while it's being displayed. Someone might have reset it in error, for example the last time the oil was changed. The Oil life display is 'next to' the tranny life display, and a sloppy oil jockey might have reset the wrong one, or both of them.
Since you seem to have two displays that are 'stange', the tranny life at 100% and the Avg MPG not displaying all the time - you might have an actual problem.
I would want the Caddy place to run good disagnoistic on the car before starting to replace things, even with the extended warranty. The problem might be in the display itself, but I think most of the display items are driven out of one of the 'computers' on the car. This 'computer' might be the cause of the bad displays, and not the dash message center.
The Avg MPG calculation is not done with the fuel gauge. It, and other associated displays (fuel used and Range) are calculated in the computer. It looks at each fuel injection and counts it. Fuel injections vary in length of time it is pulsed. We are talking microseconds here. The computer counts these and knows how much fuel is being injected, and gets the fuel volume from here. The speedometer gives the distance (Of course, it also is electronic, counting some kind of rotating pulse drive in the tranny). It then displays the fuel used, avg mpg, and range using these values.
#2551 of 2635 Re: INSTRAMENT READINGS ON 2002 DE VILLE [bolivar]
Mar 22, 2011 (7:41 pm)
Great information and follow up, thanks. Since the Cadillac dealership has discouraged me from doing anything about the read out problems and the car runs well otherwise I will live with it for the time being. I have an ocassionaly sticking front passenger door lock that will need repair or replacement of something and I will probably wait and try to resolve the gage issue when I get the door lock issue repaired. If the transmission fluid gage was reset the latest it could have been done would have been two years ago when I bought the car as it was 100% then and has never changed. I also checked the reading on my 2006 DTS and they evidently dropped this information as I could find nothing in the messages regarding transmission fluid life. I never bothered to look in that the 06 has only 23,000 miles on it and was bought new.