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Cadillac DeVille

2634 messages,  Last post on Apr 28, 2013 at 12:50 PM

You are in the Cadillac DeVille Forum.

What is this discussion about? Cadillac DeVille, Sedan

Messages Page 256 of 264

#2546 of 2634 Re: 1997 Cadillac DeVille [maz28] by bolivar

Feb 18, 2011 (7:58 pm)

Replying to: maz28 (Feb 16, 2011 8:19 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 2634 INSTRAMENT READINGS ON 2002 DE VILLE by bremertong

Mar 18, 2011 (11:06 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 2634 Re: INSTRAMENT READINGS ON 2002 DE VILLE [bremertong] by bolivar

Mar 19, 2011 (12:57 am)

Replying to: bremertong (Mar 18, 2011 11:06 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 2634 Re: INSTRAMENT READINGS ON 2002 DE VILLE [bolivar] by bremertong

Mar 20, 2011 (10:20 pm)

Replying to: bolivar (Mar 19, 2011 12:57 am)
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 2634 Re: INSTRAMENT READINGS ON 2002 DE VILLE [bremertong] by bolivar

Mar 22, 2011 (4:35 am)

Replying to: bremertong (Mar 20, 2011 10:20 pm)
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 2634 Re: INSTRAMENT READINGS ON 2002 DE VILLE [bolivar] by bremertong

Mar 22, 2011 (8:41 pm)

Replying to: bolivar (Mar 22, 2011 4:35 am)
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.

#2552 of 2634 1998 blown head gasket on cadillac deville by jamnjimi1965

Mar 24, 2011 (6:34 pm)

Anybody in NC who is interested in starting a class action suit against GM for repair reimbursement of the cost for rebuilt motor which will cost at least $4000.00 because of blown head gasket at 80,000 miles which my car has 87,000 miles but is in perfect condition other than this problem let me know.

#2553 of 2634 Re: 1998 blown head gasket on cadillac deville [jamnjimi1965] by bolivar

Mar 25, 2011 (2:47 am)

Replying to: jamnjimi1965 (Mar 24, 2011 6:34 pm)
Well, there are a lot of people in this 'class'. I've been reading about Northstar head gasket problems in Caddy forums for many years. From first 94 models until about 2000 they changed the bolt length and thread pitch which I think helped it somewhat.
 
You don't actually need the people, you need the big law firm that will take it on. And make $100,000,000 dollars while the people in the class get a certificate that is worth $4,000 off MSRP for purchase of a new Cadillac.
 
I love our justice system.

#2554 of 2634 Re: INSTRAMENT READINGS ON 2002 DE VILLE [bremertong] by gmcustsvc

Mar 25, 2011 (8:11 am)

Replying to: bremertong (Mar 22, 2011 8:41 pm)
I’m sorry to hear about the concerns you’re experiencing, and I was hoping you’d be willing to email me and reiterate the exact concerns you’ve had checked out at your dealership. If you could also email me your VIN, involved dealer and contact information, I can look into this further for you.
 
Thanks,
Laura
GM Customer Service

#2555 of 2634 Re: INSTRAMENT READINGS ON 2002 DE VILLE [gmcustsvc] by bremertong

Mar 25, 2011 (10:58 pm)

Replying to: gmcustsvc (Mar 25, 2011 8:11 am)
Is there a way to call you at GM customer service and discuss before you contact the dealership? I would prefer to do that first and with the information you provide go back to the dealership and try to resolve and if unsucessful than have your department contact them. Hope that would work. Please let me know, thanks.

Messages Page 256 of 264

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