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Cadillac DeVille



  • bolivarbolivar Posts: 2,316
    Wild, wild guess - a heated windshield?
  • sls002sls002 Posts: 2,788
    Heated windshields were an option in 1992.
  • Really!?!? I see the ECM output for heated windshield.....
    I need an input for my "charging" sensor. Didn't know if it should go to one of the three "post" wires that ran down to the assembly by the front wheel or where it should go. Just on the B+ terminal maybe??? hmmmm, don't know.
    thanks for the help though.
  • fatpunkfatpunk Posts: 4
    ok i have a 79 deville project pretty good condition the paint is rough but thats about it...i am looking to do a few things to the 425 to liven it up a little and i plan to have a dark gray paint scheme with blacked out windows and american racing torque thrust 2 gray wheels dual exhaust and a few other things...only question i suppose is there any easy way to lower the 79's an inch or 2? i have looked around and i cant find lowering springs or anything...any help would be much appreciated :)
  • geo9geo9 Posts: 739
    FP..............that 425 is NOT a hotrod motor !!!!!!!!
    Pounding on it will only result in major engine damage.
    Its made for crusing and NOT racing !!!!!!!!!!

    The rocker arms are riding double on a cheap u shaped
    stamped "steel" band that holds them together. The
    cheap steel snaps and you end up with a few bent push
    rods and possible bent valves.
    Unlike other GM v-8s where each seperate rocker arm is
    held by itself to a stud and nut in the head which can
    take high RPM abuse !

    Now if that Cad had a Buick 307 or a Chevy/Olds 350-402
    you could mod away..............

    When I had my Fleetwood 75 with the 425 my young cousins
    took it out and pounded on it and snapped that rocker arm
    tray with major valvetrain damage I warned them about
    it too.........knuckleheads !!!!!!!!!!!!! :cry:

    I have NO problems pounding on my 03 Deville with the N-star. But a older caddy with a 425/368 your asking for

    Good luck and keep us posted !..................
  • fatpunkfatpunk Posts: 4
    no my friend you misunderstand me i have no desire to pound on it at all...i will use it for cruising but in the process of doing the other things to it i want to add a little power and make it sound better and such. i appreciate the info and concern but i have no intention of racing it or beating on it....just getting a little more power out of it just to have it more or less....cheers
  • geo9geo9 Posts: 739
    Performance mod. stuff is simply NOT manufactured for
    a 425 anymore pure and simple. Possibly a big aftermarket
    carb, a breakerless ignition conversion kit and maybe
    a fancy open element air cleaner are about the only
    "performance" mods you could do to the motor itself.

    Check out Jegs, eldebrock, holley, hurst, crane cams etc. on line and you will see what I mean.

    Now if you owned a machine shop and reworked the
    valve train arrangment plus other internal mods.....
    But then your spending MAJOR bucks.
    A small or big block high performance GM crate motor
    is a great option for performace applications.
    Spending 4 to 5 thousand is not out of the question.
  • fatpunkfatpunk Posts: 4
    see although i do appreciate the input...i am aware of what is out there for the engine...i planned on a open air filter/ catless exhaust/bigger carb/ few simple things....the only thing i was really asking initially was whats the best way to lower the 79. i have done alot of research on everything else about the car (had it for about a year now) just never really got a good answer on the lowering question....i always get some jackass kid saying "just cut the springs" i was wondering if there were any other known ways to lower the 79 an inch or 2....not looking for a low rider just a more agressive lower look....but like i said i appreciate all the info you provided geo...thanks for being helpful. *cheers* :)
  • geo9geo9 Posts: 739
    As far as lowering your Deville cutting the front
    coil springs or installing a spring compressor (poor
    choice) is the only way to drop the front.

    As far as the rear depending on if you have coil or
    leaf springs. If coil again cutting the spring or
    using a spring compressor are your only options.
    if you have leafs you could remove a leaf or 2 (thru
    the trial or error method. There are even ways to
    "reverse" the spring order to lower the rear.

    Have you done any Google searches on lowering a car?
    Theres prob. a lot of sites out there..........

    Even check out
    they have a complete Caddy mod thread over there and
    some folks that could point you in the right direction.

    Good Luck and keep us posted !.................geo :)
  • bolivarbolivar Posts: 2,316
    I know nothing about lowering a car.

    But couldn't you get an inch or so with low profile tires?

    What rim and tires that would fit and give a lower profile - I can't help you.
  • geo9geo9 Posts: 739
    Thats why I sent FP over to that other forum or suggested
    he do a search on lowering a vehicle.

    Most of us here are "old timers" interested a in nice smooth cruiser with 300 horses at the push of a pedal.
    Not to mention how many sets of clubs will fit in the
    trunk and other ol' duffers will fit inside on the way
    to the clubhouse to shoot a few links............LOL!

    But thats cool !!!!!!!!

    I have seen a few lowrider Caddies on some of those
    car shows and some look REAL good !
    But i can imagine some BIG $$$$ is spent making them
    look that way................... :shades:
  • bolivarbolivar Posts: 2,316
    Yep, I like most things stock, stock, stock.

    I only mentioned the tires because on a car I owned, it came with 70 Series tires, and when they wore out, I couldn't find that size easily. So I put 75 Series, plus I think I moved up a size.

    It was an 84 Toronado. With this tire change, it significantly changed the 'stance' of the car. It almost looked like it was on tippie-toes. I never thought what I thought was a small tire change would change the appearance that much.
  • geo9geo9 Posts: 739
    CHUCKLE......Even tho I am a "blue hair" rolling in
    a Caddy I still have my 72 GTO I got in 1974 and used
    to race it C/Sa. Yup now that I'm older I like the
    stock running vehicle. It took me FOREVER to find
    the stock intake, q-jet, exaust manifolds to return
    my Goat to its stock glory !
    I recently purchased 84 Z-28 to play with.........
    I love to take them out and POUND them at will !!!!!
    That Northstar powered monster still "walks" them both
    with the a/c and the Bose cranking !!!!!!!!!!

    My 17 yo. wants a set of "jordans" and spinnaz for his
    Cavilier. I told him his $pendy insurance is coming
    due and college is not far off. He had better pick up
    a extra shift at McDs............LOL!!!!!!!!!! :P
  • bolivarbolivar Posts: 2,316
    Looked hard at buying a new GTO about that time.

    I bought a 72 Corvette instead.

    By 1972 they were smogged down and slow, but still a Corvette. It was nice. Kept for about 7 years and sold it for more than I bought it new.
  • sls002sls002 Posts: 2,788
    GM's engines were tuned to use unleaded gasoline in 1971 and did not have exhaust gas recirculation until 1973. However, the engines were not rated by gross horsepower as they were in the 60's, but were rated net horsepower as they are now. The Corvette offered 350 and 454 cubic inch V8s. Neither engine would have had the performance that the 427 racing engine had in the 60's. Still, the 454 should have been quite good.
  • bolivarbolivar Posts: 2,316
    Yes, they were 'tuned' to run on 'low-lead' gasoline, which meant the compression ratios were dropped. And the lower compression de-tuned the engine significantly compared to the 1970, higher compression motors.

    I had a 350 automatic. It was slow.
  • sls002sls002 Posts: 2,788
    For what it is worth, I use Mobil 1 since my oil monitor is giving me around 9-10,000 miles between changes. It does cost more, but with the longer interval it is still affordable.
  • dhs1dhs1 Posts: 6
    Anyone had any experience upgrading their interior trim using flat panel or molded kits that are advertised as OEM factory finish kits that stick on some of the interior plastic trim and make them look like real zebrano wood? There appear to be numerous manufacturers eg. BandI trim, Sherwood, Woodview etc. but I don't know who makes the best.
  • antg4lifeantg4life Posts: 1
    hello I have a 2000 deville with a cracked night vision lens just curious of how much it will cost to fix and where can I have it fixed at or order the part thanks for your help.
  • geo9geo9 Posts: 739
    ANT....Check out this site: - - - vision-camera.html?highlight=night+vision+parts

    Found a repair kit on flea-bay: - - 003_W0QQitemZ140003666186QQihZ004QQcategoryZ6779QQssPageNameZWDVWQQrdZ1QQcmdZVie- - - wItem

    NOTE this to know if you have the 1st or 2nd design of
    the camera.
    Info - Repair Kit Available for Night Vision Camera Lens/Window #01-08-49-008 - (May 24, 2001)
    Repair Kit Available for Night Vision Camera Lens/Window
    2001 Cadillac DeVille DHS, DTS with RPO UV2

    Built After VIN Breakpoint 1U172694

    This repair kit is to be used ONLY on the 2nd design Night Vision Camera Assembly, OEM P/N 25716414, REMAN P/N 88890711. The 1st design night vision camera is not serviceable and must be sent to Model Electronics for repair. Refer to Corporate Bulletin Number 00-08-49-001B for Service Center information.
  • Just had to pop in and see what was being spoken of in here.


    If ya' wanna see more of her go to
  • Karen_SKaren_S Posts: 5,095
    Pretty! Why don't you build a Carspace page and include your photos there!

    Edmunds Manager UGC Click on my screen name to send a personal message. Need help navigating? Check out Getting Started in Edmunds Forums.
    Need help picking out a make/model, finding inventory, or advice on pricing? Talk to an Edmunds Car Shopping Advisor

  • If you Google coup deville - my car is the second link on the first page. It's also in a couple of the Cadillac group sites!

    I haven't checked out Carspace yet - I might do that after I post this ........ :)
  • 04cad04cad Posts: 131
    Does anyone know the procedure to remove the rear seat bottom on a 2005 Deville? I think something slipped under the back edge of the seat and I need to remove it to see if that is where it went. Thanks in advance.
  • imidazol97imidazol97 Crossroads of America I70 & I75 Posts: 21,507
    My rear seat just lifts straight up. It has the battery under it so it's a little easier to access than usual.

    My other H body rear seat pushed to the rear an inch and then lifts up. I put my knee against the seat bottom, shove, and lift.

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

  • I have a 1970 DeVille w/ 472 CID that needs manifolds.

    I found what might be the right ones - this is what the advert. says:

    1968 to 1978 Cadillac Eldorado Left (drivers') Exhaust Manifold. It fits 425 , 472 ,and 500 ci engines (ex. 70-76 500's).The condition is good with all "ears" in good shape and exit flange in good shape too. The surface has light rust but it will clean up nicely. Casting no. 1485749

    Is that what I need? What would be a high end FAIR price for this?
  • sls002sls002 Posts: 2,788
    The Eldorado was FWD in those days, so I don't know if it would work. The FWD was not a transverse engine mounting though, so maybe, but I would not count on anything.
  • A 1988 Sedan De Ville when either idling for a while or engine off for a while when started gives off a good puff of blue smoke out the exhaust. Cannot see any smoke when driving normally. Would this be the valve seals or a greater problem? Anyone know and the approximate cost of repair? Thanks.
  • The 98 has 100,000 miles on it.
  • kpevavkpevav Posts: 41
    Does the front passenger seat on the standard 2005 Deville have a sensor that turns off the airbag if someone under 80 pounds is seated there? I thought just about every car -- except my wife's 2005 Subaru Forester -- had that feature, but I sat in a Deville and did not see any visible evidence of the sensor.
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