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Cadillac DeVille



  • patpat Posts: 10,421
    You might want to check out the "Sell Your Car" link in "Partners" box on the left side of the page.
  • I own a 98 Deville with 33,500 miles on it. During my ownership of close to three years I have always used premium gasoline as recommended
    by Cadillac for the 98 model year. In addition I have almost always used a bottle of STP fuel injector cleaner with each fill up. Recently I have alternated with Gumout octane booster and fuel injector cleaner. I am very satisfied with the performance of my Deville using both these products.

    My only question is, could I be doing any unseen
    and deferred damage to the Northstar system using these products? Any response appreciated but those who have used these products or similar the feedback would be most helpful.
  • imidazol97imidazol97 Crossroads of America I70 & I75 Posts: 21,499
    You and others may not agree with my opinion...
    Most of the additives are transfer devices. They transfer money from your pocket to the company's pocket.

    I've listened to several mechanics do talk shows on car repair for about 25 years. One recommends only Techron additive, by Chevron company. It contains the additives which were in Chevron's gasolines and recognized as best through the years. I find it at Advanced Auto parts (other stores with different names are part of the same chain), Pep Boys, Meijers Superstores in Mich, OH, KMart now.

    He recommends it for what seems to be injector problems when there are symptoms. Then it's put in one bottle with the tank near empty, fill up per bottle size; run that through; then when near empty repeat with second bottle. If that doesn't clean the injectors, then greater help is needed. Do not repeat for 3000K or so.

    Otherwise I put in a bottle every 10K or twice a year roughly.

    There is a "fuel system cleaner" and an "injector" cleaner version. I suspect the injector cleaner is let potent since it's cheaper.

    If you use only brand name fuels, you shouldn't really need any additives. (I used to buy nonalcohol fuels at a chain store about half and Shell/Chevron/Mobil half. Now I buy only Shell or Mobile name type brands.)

    If you buy at some stations which are not main brand and/or contain alcohol in their fuels, I'd recommend this about the way I use it, unless you have some running symptoms that you think might be injectors-intake valves.

    --just my opinion. Excuse the length. Others may have different opinions.

    2015 Cruze 2LT, 2014 Malibu 2LT, 2008 Cobalt 2LT

  • 98 De Ville. The gas cover to the tank won't release when activated by the remote. You can hear the clicking when the remote is pressed, but the door doesn't open. Trunk release lever seems to be all the way out and when pulled does not move, as though it never retracted to reset. Anyone have the answer as to reset this item? Thanks in advance, Rich.
  • I also own a 98 Deville, have never had that particular problem. If no one else here replies with the information you need to correct, would suggest you take to nearest dealership (a call may suffice) as I suspect the would charge very little if anything to correct (ask first). Another idea would be to call Cadillac roadside service with the question in that they provide basic information free even after the vehicle is out of warranty.
    When you do correct the problem it would be helpful if you lets all know the outcome so those
    of us with similar problems and models will know how to correct.
  • Thanks for the response, bremertong. High technogoly fixed this situation. Pull and push the hand lever in the trunk with your right hand while tapping the gas cover at the same time with your left hand will solve the problem. The little knob that retracts when activated by remote, releases the beveled latch on the gas cover door and allows it to open was stuck. A spray of WD-40 on the knob and now it works perfectly.
  • You asked:

    But does the 4.9 work well in the 94?

    My answer, is YES. The 4.9 is a great engine and our Deville has run (so far) 135,000 miles without any major engine problems of any kind.

     The electronics are way overengineered in Cadillacs and there's where our troubles lie. Around 134,000 the car would not hold a charge. My mech (independent, not a Cad dealer) checked things out for about 4 hours (charged me for 1.5) and all we could do is isolate the current drain to the power lock/seat/trunk circuit. Removed the CB from the engine bay and have had no problems other than no pwr locks, seats or trunk release.

    That aside, mechanically the 4.9 is damn near bulletproof, IMHO, and worth buying. Can't speak to the price you quoted for your area, but that seems a tad high. I see 94 SDV's around here running about $3500-4000 USD...
  • Does anyone know if the installation of a viper remote starter device, including a new key and all other remote operations included in that key will in any way hamper the short or long term viability of that original factory system? This is a 1998 De Ville. Thanks. Around $400.00
  • My 95 Sedan Deville will start fine when cold but once car warms up and I turn the ignition off, the car will not restart. However, after car sits for about 20 to 30 minutes, it does will start again. Originally thought this was a battery problem but the battery tested Good. Had fuel pump replaced about 1 year ago. Any suggestions for this problem ?
  • Hi Caddy owners,
                    My 2000 DTS has heated seats & I wondered if they are really supposed to get more than warm. I live up just North of Toronto, and boy has it been a cold winter so far. Average temperatures have been hovering around -10F nights to maybe -5F during the day. Question is, when switch for heat on door is pushed, it lights up, for either High, Med,or Low. But.... it dont seem to matter what position switch is set to, the front seats never seem to do anything but get lukewarm. I have checked out the fuse's under rear seat and they appear fine. Anyone out there with previous seat experiences? I can live without heated seats, but sure is nice too if they work. Yet again, maybe mine are not even working, and its only my body heat warming up the seat. Ah well, only another month of cold and we will be into balmy spring weather. Sure wish my folks had settled in California or Florida. Take care all.
  • The original seat heaters in these cars got really nice & toasty, however, they failed with such regularity that a revised seat heater is available now. They don't get as hot as the original ones that were put in at the factory, & they heat up slower, but they don't fail either. Sounds like your seat heaters are shot. They are wired in series. The skins have to come off the seats & new back & bottom pads have to be installed. (Both front seats) The dealer probably has them in stock. its a 1 day job subbed out to a local upholstery shop. If you are under warranty do it. You will notice the difference.
  • Many thanks barry 45rpm for the info. Will probably have to take car into dealer as you advise. Just dislike the hassel of leaveing it in for the day, (or two), but luckily I am still under warranty.
  • I own a 1998 Deville and have had the same problem. Engine starts up fine first time used
    but hesitates or on rare occasion stalls out on subsequent starts. My dealer has not been able to tell me what the problem is but says it is common to Deville. My concern of course is that one of these times it will not start. It is fresh on my mind as it stalled out on Monday (2/03) and then started, this again after it started fine when leaving home this morning.

    One clue is it may have something to do with the time the key is held in the crank position to start the engine. If inadvertently held even a fraction of a second too long may it be flooding the engine. Why this would only happen after the first start of the day is a mystery to me.

    Suggest you call Cadillac road service as they will answer general questions even after warranty
    is up without charge. I may call them myself as I have had this problem on occasion now for the close to three years I have owned the car.

    If you find the answer or solve the problem please post the information so we will know and I will do the same.
  • fjk57702fjk57702 Posts: 539
    Has the dealer checked the fuel pressure regulator? If it is leaking this can cause flooding which makes the car hard to start.
  • Thanks, bremertong for your related experience with this problem.
  • Thanks fjk57702 I will pursuit this with the dealer.
  • While fuel pressure regulator may have something to do with the problem stated in message 1359, I doubt it is at the cause of the problem expressed in message 1363. Reason being that the
    stall out has only occurred occasionly and that
    when I wait about 30 seconds and re start the engine, it starts fine. It is still a mystery in that it has been doing this for most of the three years I have owned the car. Sometimes it won't happen for several weeks. I get most of my routine work through the mechanic where I bought the car. The one time I took the car to the GM dealer for an oil change they damaged a bumper so I avoid them whenever possible.
    So as long as the problem doesn't get worse I will probably live with it. I also checked my battery recently and was told it was charging at 660 out of a possible 770 when the car was new and that I shouldn't be concerned about the battery until it charges around 350. The car (98 Deville) currently has 34,000 miles on it.
  • I have a chance to pick up an immaculate coupe, my brother in laws parent's florida car, original owners, 70,00 miles. I need a third car for local driving, will this bankrupt me in terms of maintenance, any particular quirks anyone may be aware of ? Thanks
  • fjk57702fjk57702 Posts: 539
    I brought this up because my 98 Aurora did have a bad regulator and would be hard to start when parked for a short time but otherwise was ok. When I explained the problem to the dealer, they found that the fuel pressure regulator was leaking. This is something that they can check. (the Aurora has the same basic engine as the northstar - just smaller)
  • When I bought my 2003 Deville program car it only came with the owner's manual. The dealer gave me a leather folder that it goes in and the pan, pad, etc. The folder I have says "Cadillac" on the front with the logo and the pen says "Cadillac" on it. I have since discovered that the actual 2003 case simply has the color logo on the front and the pen does not say "Cadillac" on it. Does anyone know which year they used my folder and pen? I've since purchased the correct one from Ebay. I figured that somebody on the board will know.
  • hydra2hydra2 Posts: 114
    The owner's manuel is a pretty standard item. You can always by replacements from Helm (or e-bay). I think that the folders, pens and other do dads that come with it are often dealer specific. They are functional, but also often used for advertising purposes, like the liscense plate frames. Also, since most dealers own several different brands, it is possible that when manuel covers are misplaced in program, demo or used cars, that the dealer might press what ever is handy into service as replacements, as long as they don't have the wrong car name on them.
  • I was told by an ebay seller that my folder that says "Cadillac" on it was used in the 2000 DeVille. Will someone with a 2000 Deville please look in their glove compartment and confirm this? Thanks much.
  • On virtually every song or two, the CD player in my base 03 Deville (the non-Bose radio) skips for a millisecond . This doesn't happen on my 2001 Malibu or my Olds Silhouette. Before I take it in and have the dealer send the radio out is there a CD player cleaning disk? I think I have one for CD-ROMs. This skipping is not because of a rough road -it does it on glass smooth highways. Does anyone else have this problem? This was a program car with 30k miles and since it is Certified it is under GM warranty.
  • jrosasmcjrosasmc Posts: 1,711
    Is the 2000-present generation of DeVilles based on the same chassis the 1998-04 Sevilles sat on?
  • imidazol97imidazol97 Crossroads of America I70 & I75 Posts: 21,499
    The Sevilles, Aurora, LeSabre, Bonneville and share a platform called H???
    The Deville and Park Avenue share a similar (my opinion) but longer platform. Wheelbase is 1.5 inches longer for PA vs LeS.
    I believe I had this straight from someone's earlier message -- perhaps a year ago... in one of the GM forums.

    2015 Cruze 2LT, 2014 Malibu 2LT, 2008 Cobalt 2LT

  • bolivarbolivar Posts: 2,316
    I'm back in the Cadillac ownership business.

    A 1997 Deville d'Elegance (sp). It's in very good to excellant shape with 64,000 miles.

    Want to make the wifie happy. She wanted anything, just so it was in the White Diamond color. She's not been happy since I sold her 1995 Concours.

    Anyway. After buying the car (of course), I went to the Nat. Highway Transportation (NHTSB) site to check on recalls and complaints. There was one recall, and the car has a sticker under the hood indicating that one has been completed.

    But - the NHTSB has 'many' (25 out of 230 total) 'complaints' about the headlight lens 'falling off' the 1997 Deville. So I check the car. The left lens has the 'glue' completely broken all around. It is just setting in place, with a rubber trim the only thing holding it in place. The right lens is not loose, but you can see inside where the adhesive is also breaking apart and falling inside. It's getting ready to go. Replacement for the pair of assemblies is supposed to be in the range of $700.

    I'm looking for input on other people having or hearing about this problem. Does Cadillac have a 'hidden' warranty where they will cover all/part of this cost? Since this does seem to be a widespread failure.

    I Cadillac won't help, I will probably attempt to use GE Silicone and just glue the lens back in place, after cleaning out all the old, cracked up adhesive inside, and cleaning the reflector area.

    Any input will be appreciated.
  • Hello All,

    I just purchased an 01 DHS Black with Night Vision Wednesday. So I am new to the Cadillac Owners Circle. When I got the car the dealer had lost the manual so I spent some time trying to find one. I was able to find an entry to GM's online archive were they have the manuals for all of their vehicles..they have Cadillac manuals from 1993 - present: can also go up in the ftp tree were you'll find other docs, recall and warranty info.

    I'll post pics of my DHS as soon as possible.
  • bremertongbremertong Posts: 436
    I currently own a 1998 Deville with 35,000 miles.
    I generally trade cars when they get up around 50,000 miles. Am considering a Jaguar Sedan for my next car. Would probably buy a 2001 or 2002 with low mileage (under 30,000). Has anyone in this conference owned both a Cadillac and a Jaguar? How would you compare the two brands so far as Maintenance costs, ride, quality and general satisfaction is concerned from your own experience? Any feedback much appreciated.
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