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1998 Cadillac Deville Sedan
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Discussion Starter #1
I'm sort of looking at a newer car than what I have right now and I have a few questions...

Are there any trouble spots I should look for in these cars?
Is the active suspension in the DTS model really worth it since it costs so much to replace them?
Can the factory navigation be updated with current maps?
Are options such as nightvision, rear window curtain and back heated seats & massage really rare and if so, do they add any value to the car?
How do I know the factory speed limiter is set at without knowing the model of the original tires?


I'm leaning away from the DTS models because of the active suspension's maintenance cost, but from a performance standpoint... is the difference between the standard sedan and the DTS significant enough to be a big deciding factor when buying an used caddie?
 

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'98 STS (RIP @ 206,xxx miles)
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I'm sort of looking at a newer car than what I have right now and I have a few questions...

Are there any trouble spots I should look for in these cars?
Nothing that will leave you stranded on the side of the road. But it is a piece of machinery and anything can fail at any time on any vehicle. Murphy's law applies.
Is the active suspension in the DTS model really worth it since it costs so much to replace them?
The short answer is yes.
I drove a '98 STS for 13+ years and a '04 DTS for almost 4 years and they both had the (F45) active suspension. And I can tell you that the active suspension saved my bacon several times before I even sensed that the wheel hop was getting out of control on a marginal road surface.
How do I know the factory speed limiter is set at without knowing the model of the original tires?
The original tire specifications are on a decal on the LF door opening. The speed limiter will not exceed the speed rating of the factory installed rubber. If you are asking about the max speed, you certainly want F45 suspension!!!
 

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2002.5 F55 CORSA STS, 2014 Explorer XLT FWD
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For a Deville model there are normally 2 tire speed rating possibilities - on the driver's door sticker as posted - S and H.
 
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I'm sort of looking at a newer car than what I have right now and I have a few questions...

Are there any trouble spots I should look for in these cars?
Is the active suspension in the DTS model really worth it since it costs so much to replace them?
Can the factory navigation be updated with current maps?
Are options such as nightvision, rear window curtain and back heated seats & massage really rare and if so, do they add any value to the car?
How do I know the factory speed limiter is set at without knowing the model of the original tires?


I'm leaning away from the DTS models because of the active suspension's maintenance cost, but from a performance standpoint... is the difference between the standard sedan and the DTS significant enough to be a big deciding factor when buying an used caddie?
The DTS all the way the CVRSS system along with the stabiltrak has saved my life twice stick with a 04-05 best years as the headbolts where updated to 2.0 threading so HG issues are not a issue no more also 04 was the last year to have a full 300HP 05 was downrated to 290HP

The factory NAV can not be updated no more 09 i think was the last year of updates so its not worth it noting more then a fancy radio display better off with the regular bose radio with XM option,

The night vision also aint worth it thats why the option was dropped its more of a toy though it does work but if the camera breaks its expensive to fix plus it makes the front grill look dumb with a big hole

The DTS has nicer 17's rims front bucket seats L37 300HP engine compared to base deville and DHS's 275HP the floor shifter is nice as well compared to the column shifter in the DHS and base deville, heated and cooled seats are standard on the DTS and DHS main thing DHS has over the DTS is the rear eletronic sunshade and rear side door sunshades and rear vanity mirrors both cars have mostly the same stuff the DTS can go past 130sMPH the deville and DHS are limited around 112MPH

So theres noting major but these cars have alot of sensors then most and they can go wacky from time to time and cadillac if kinda famous for eletrical gremlins :D best thing learn the car and its parts so when something happens your not lost and can talk the talk to a mechanic if your not doin the work yourself
 

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90 Brougham 5.7, 05 Deville DTS
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I'd say try to get a 05, deville or DTS, which ever you decide on, but try to get a 05.

In 05 Cadillac used different bolts for the heads & this reduced the amount of head gaskets failing.

Have fun car shopping.
 
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I'd say try to get a 05, deville or DTS, which ever you decide on, but try to get a 05.

In 05 Cadillac used different bolts for the heads & this reduced the amount of head gaskets failing.

Have fun car shopping.
The 04 cars have the newer headbolts aswell
 

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2006 STS V Tango int
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Some 04's do not all... And there's no surefire way to tell.... All 05's have it I would go for an 04 though newer and any car that is the last year for its body style seems like a plus to me.... Also 04-05 dts will have the heated steering wheel which can be nice in cold conditions, F45 cvrss is very nice either way I think you will be satisfied...... It is after all a 4000lb+ car not a ZL1 camaro
 

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2010 DTS
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87,448 Posts
Is the active suspension in the DTS model really worth it since it costs so much to replace them?
That's probably a personal choice, but not in my opinion.


Are options such as nightvision, rear window curtain and back heated seats & massage really rare and if so, do they add any value to the car?
All except nightvision are standard on the DHS. Rear window shade is not even an option on the base Deville. Added value? :noidea: I suppose some.


How do I know the factory speed limiter is set at without knowing the model of the original tires?
112 on the Base & DHS (I think the DTS as well, but not sure).


I'm leaning away from the DTS models because of the active suspension's maintenance cost, but from a performance standpoint... is the difference between the standard sedan and the DTS significant enough to be a big deciding factor when buying an used caddie?[/QUOTE]
 
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Some 04's do not all... And there's no surefire way to tell.... All 05's have it I would go for an 04 though newer and any car that is the last year for its body style seems like a plus to me.... Also 04-05 dts will have the heated steering wheel which can be nice in cold conditions, F45 cvrss is very nice either way I think you will be satisfied...... It is after all a 4000lb+ car not a ZL1 camaro
This is how u tell check the ID



From this we can determine that 2004 N*'s with the following engine ID's have the M11x1.5 threads like the 00-03's have.

JBA
JCA
LBA
LCA
JKB

We can also determine the following 2004 engine ID's have the new and improved M11x2.0 threads like the 05's have.

JBB
JBC
JKA
JMA
JMB
JPA
JPB
LBB
LCB

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How do I know the factory speed limiter is set at without knowing the model of the original tires?
The tires really have noting to do with the speed limiter u can put Z rated tires it does not affect it, the base deville and DHS are set at 112 with S rated tires and the DTS limit is around 130 with H rated from factory but ether way whatever tires are on there dont matter as most will never go to that speed level
 

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2005 Deville DTS
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36 Posts
I just got an 05 DTS and I couldn't be happier. If you look around you can find them with low mileage at a good price. Mine even has a three year warranty.
 

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1998 Cadillac Deville Sedan
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897 Posts
Discussion Starter #12
Yeah even a fairly low mileage 04 or 05 Deville DTS is under 10k or much lower than that. I was even looking at 06~07 Devilles but the ones under 10k all have about 100k miles, which isn't that much for those caddies but still.
 

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2008 DTS Perf-Plat, fr 11 STS, 04 DeV, 76 Eldo Con, 74 Fltwd
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The 04-05 DTS has a higher final drive ratio, so it's quicker off the line but gets 2-3 worse mpg. The base DeVille feels lazy until you step on it, but you can get 25+ mpg on the highway at >70 if you're careful and use hills. I learned to appreciate the column shift and digital speedometer. My base model had the heated wheel and cooled seats, but no shades.

The 2006+ models have comfortable seats with significantly more rearward travel and side support (not always a plus if you like to lean to the side), but IMO a much inferior dash and door.

The power windows will need repairing at some point if they haven't been. The front suspension is very sensitive to tire imbalance, so you have to get quality tires installed well or you'll shake down the highway.

The engine ID code is visible on the passenger side rear corner of the engine.
 

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2002 Deville
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26 Posts
This is how u tell check the ID



From this we can determine that 2004 N*'s with the following engine ID's have the M11x1.5 threads like the 00-03's have.

JBA
JCA
LBA
LCA
JKB

We can also determine the following 2004 engine ID's have the new and improved M11x2.0 threads like the 05's have.

JBB
JBC
JKA
JMA
JMB
JPA
JPB
LBB
LCB

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The tires really have noting to do with the speed limiter u can put Z rated tires it does not affect it, the base deville and DHS are set at 112 with S rated tires and the DTS limit is around 130 with H rated from factory but ether way whatever tires are on there dont matter as most will never go to that speed level

Question: I have a 2002 Deville and checked my engine code and there are two sets of numbers:
set #1) *10JMAL120915423*
set #2) JMA12562675

Does that mean my engine has the M11x2.0 threads even though it is a 2002 or are there exceptions for 02's?
 

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2010 DTS
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The '02 got the longer head bolts. That came in 2000. The coarser thread pitch did not come until '04. You don't have 'em (unless it's not the original engine).
 

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04 deville
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I love my 04 base. It's got heated and cooled seats, heated steering wheel, and will hold 6 adults. I wouldn't call its performance lazy...but I guess it's all relative. Compared to my Honda crv and Chevy s10, my caddy is a race car. It handles great too. My traction control works just fine...the dts suspension will only get you around the nurburgring faster, not more safely.
 

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2001 Cadillac DeVille DTS
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I love my 04 base. It's got heated and cooled seats, heated steering wheel, and will hold 6 adults. I wouldn't call its performance lazy...but I guess it's all relative. Compared to my Honda crv and Chevy s10, my caddy is a race car. It handles great too. My traction control works just fine...the dts suspension will only get you around the nurburgring faster, not more safely.
If you drove a Deville down a twisty road and then drove a Deville DTS on that same road, you will be able to take the turns quicker and safer in the DTS. The Deville has a nice ride and can handle decently for the ride quality, but in an evasive maneuver to prevent an accident, I would most definitely prefer to be in a DTS than a Deville. The Deville wallows and plows through turns compared to the DTS, and that's why the DTS has a firmer ride.
 
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If you drove a Deville down a twisty road and then drove a Deville DTS on that same road, you will be able to take the turns quicker and safer in the DTS. The Deville has a nice ride and can handle decently for the ride quality, but in an evasive maneuver to prevent an accident, I would most definitely prefer to be in a DTS than a Deville. The Deville wallows and plows through turns compared to the DTS, and that's why the DTS has a firmer ride.
I can vouch for that the my DTS has saved me from fender benders twice at red lights where the first car goes then brakes, morons :yup: a base deville i wouldnt count on to do that its a floating couch even though the driver has alot to do with it i felt the car react as fast as i did and move all 4000LBS of her out the way in 1 1/2 seconds like noting, in trying to avoid fender benders the better the car can take the curves and keep 4 wheels planted the better chance you have at not having one, after i was shocked and said to my self the CVRSS may be expensive to fix but i would not trade it after that even though i toy with the idea of going passive its all in the proof brother :D
 
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