03 DTS.. Rear Shock Leaking and messing up tire.. help
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, 03 DTS.. Rear Shock Leaking and messing up tire.. help in Past Cadillac Vehicle Discussion; So, I tried to find an answer to this exact question. I just had my tires rotated and balanced.. the ...
  1. #1
    monty_n_philly is offline Cadillac Owners Member
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    03 DTS.. Rear Shock Leaking and messing up tire.. help

    So, I tried to find an answer to this exact question. I just had my tires rotated and balanced.. the pass rear shock is leaking and messing up my tire. I found these shocks...Monroe MaxAir MA822 as the replacement. I can get them good price at advance auto parts, the question is. With an air ride rear suspension, are these correct and are they easy enough to do on my own, or should I have a shop replace them with me buying the parts? Thoughts

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    Submariner409's Avatar
    Submariner409 is offline If it won't run, chrome it
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    Re: 03 DTS.. Rear Shock Leaking and messing up tire.. help

    Wrong forum - you have a real Deville Touring Sedan, not the later replacement "DTS". Moved to Deville.

    Our cars (DTS/STS) DO NOT have "air ride". They have active suspension - struts and shocks - with the shocks incorporating air bladders for rear level control due to extra weight in the trunk or back seat. Your DTS has a suspension system called CVRSS - Constantly Variable Road Sensing Suspension - and to replace it with active components is rather expensive. Monroe makes several shocks which incorporate level Control but are passive - you lose the rear suspension controls.

    To test your ELC (Electronic Level Control) or ALC (Automatic ........)(depending on year), in a quiet environment turn the ignition Key: ON. About 8 seconds later you should hear the ELC compressor do a preload/prove-out. Now, with the Key: ON pop the trunk. You and 2 assistants sit on the trunk lip. The ELC should again level the car. OK ?? All hop off and you listen for escaping air in the RR wheelwell. OK ? If not, you'll need further diagnosis of the ELC system.

    Look through Discussions, Item Specific: Cadillac Tech Tips for articles on your rear suspension and height controls. Or Google something like "cadillac forums 2003 deville rear shock replacement" or somethinbg close, always preceded by "cadillac forums .........".

    Another member, basscatt, has the real bottom line on what Monroe shocks to use. Hang in there ..............

    EDIT: You NEED to study the thread close by - "How to adjust rear ride height ............. " or close ..........

  4. #3
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    Basscatt is out polishing his spinners.

    Active Monroe replacements: 40029 and 40030

    Passive replacements: MA822

    Google the part numbers to find the best price.

    If you go passive, you'll need to install resistors to fool the computer.

  5. #4
    basscatt's Avatar
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    Re: 03 DTS.. Rear Shock Leaking and messing up tire.. help

    [QUOTE=MoistCabbage;10649577]Basscatt is out polishing his spinners.

    Active Monroe replacements: 40029 and 40030

    Passive replacements: MA822
    ---------------------------------------
    Basscatt is out polishing his spinners -

    ----------------

    actually - I was at the "MAN'S MALL"
    getting a couple doors for my niece's car -
    found a couple great ones - $44 each -
    ---------------------------

    OK - your Deville DTS has "ACTIVE" - read EXPENSIVE - suspension -

    like MC already posted -

    the correct Monroe ACTIVE replacements are the 40029 and 40030 -
    the best price today - are you sitting down -
    40029 - $385.25 - with shipping -
    40030 - $402.56 - with shipping -

    the MA822 is an EXCELLENT CHOICE - and 99.99% of the drivers -
    wouldn't be able to feel the difference between ACTIVE and PASSIVE suspension -

    the best price today is $58.25 - with free shipping -
    http://www.partsgeek.com/32syvb4-bui...ber.html?fp=pp

    and you will need to install 2 - 4.7K Ohm 1/2W resistors -
    RadioShack #271-1124 -
    and that's gonna set you back another $2 -

    and YES - they are very easy to replace by yourself -
    with noemal hand tools - a jack - and jack stands -

  6. #5
    MoistCabbage's Avatar
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    Ah, I was at the mans' mall earlier too. Needed a rear courtesy light and a trunk/fuel door switch. $10 in parts, $20 in gas.

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    basscatt's Avatar
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    Re: 03 DTS.. Rear Shock Leaking and messing up tire.. help

    Quote Originally Posted by MoistCabbage View Post
    Ah, I was at the mans' mall earlier too. Needed a rear courtesy light and a trunk/fuel door switch. $10 in parts, $20 in gas.
    ---------------------------
    is your baby almost done?

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    MoistCabbage's Avatar
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    I've been putting it off, been busy with other things. Headliner went in today. All the pillar trim will probably get done tomorrow, and the last thing will be the door panels.. I have a few tiny dings in a couple if the doors, so I'm having some PDR fine in Tuesday. Then I can do the sound deadening on them, and install the black door panels.

    What was this thread about again?

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    monty_n_philly is offline Cadillac Owners Member
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    Re: 03 DTS.. Rear Shock Leaking and messing up tire.. help

    wow, i did not realize the rear suspension had controls for it. If i do turn the key on I can hear the compressor.. so it has it, so now what? There is a huge price difference I see..

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    MoistCabbage's Avatar
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    The compressor is for the leveling system. In addition, your car has adjustable damping (stiffness) control. It's automatic, no manual controls.

    Most people wouldn't be at to tell th difference between active and passive dampers durring normal cruising. What type of replacements you use is up to you.

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    monty_n_philly is offline Cadillac Owners Member
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    Re: 03 DTS.. Rear Shock Leaking and messing up tire.. help

    If I go with the Passive, since it is cheaper, is there anything special i need to do, someone said "Dampers"? I don't know what they are or how they go. The inside of my rear tire is bulged up, so the shock has ruined a tire.. So i need to get this done soon. Can I just buy these shocks I have up top and put them in and be OK? THis is my 3rd car, my sunday cruiser for going on trips and such, it is not my everyday driver...

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    Submariner409's Avatar
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    Re: 03 DTS.. Rear Shock Leaking and messing up tire.. help

    "Damper" = suspension control part = strut (front) or shock (rear).

    Your car has constantly active suspension controlled by at least a dozen sensors to control braking, nosedive, body roll, steering, lots of stuff. The struts and shocks are an integral part of this body control system.

    You CAN replace the shocks with passive units, inserting a 4.7 KOhm resistor in the shock control electrical connector. The replacement shocks should incorporate the Level Control feature to prevent "tail dragging" when extra weight is placed in the trunk or back seat. The air compressor and rest of that level system must be functional.

    All answered in Post # 2, 3, and 4

    Sounds like you're also in the new tire business.

  13. #12
    monty_n_philly is offline Cadillac Owners Member
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    Re: 03 DTS.. Rear Shock Leaking and messing up tire.. help

    Thank you but this makes me nervous, I have no idea how to connect the resistors or where they go. I do not put much in my trunk and my backseat is only really used by my 2 yr old daugther. I have replaced shocks in other cars, but never had to deal with the resistors...

  14. #13
    MoistCabbage's Avatar
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    The resistors have nothing to do with the leveling system, they're to stop the codes and warning messages that you'll get if you install passive dampers.

    Search "CVRSS resistor bypass", the resistor trick has been discussed many, many times.

  15. #14
    basscatt's Avatar
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    Re: 03 DTS.. Rear Shock Leaking and messing up tire.. help

    Quote Originally Posted by monty_n_philly View Post
    Thank you but this makes me nervous, I have no idea how to connect the resistors or where they go. I do not put much in my trunk and my backseat is only really used by my 2 yr old daugther. I have replaced shocks in other cars, but never had to deal with the resistors...
    ---------------------------
    it is no big deal at all -

    ALL Devilles have Automatic Level Control -
    basically - the rear shocks have air bladders built in -
    and are inflated to raise the body of the car -
    when extra weight is in the back seat or trunk -

    in addition to that -
    your DTS model Deville has electronically controlled shocks -
    that adjust the stiffness of the ride -

    you will find a small air line connected to the shock - locked on with a spring clip -
    the new shock will have the same thing - and will use the original air line and clip -

    in addition to the air line -
    your original shocks will have an electrical plug attached -
    this controls the electronic part inside - that controls the stiffness -

    the new "passive" - or "non-electronic" shocks will NOT have this plug -
    the new shocks don't have adjustable "stiffness" -
    which is why they are so much cheaper -

    so - the computer system monitors the electronic shocks -
    and because the new shocks are not electronic -
    the computer will think there is something wrong with the shocks -
    because there is no "response" to the electronics -
    and this will cause the computer to flash a warning in the display -
    SERVICE SUSPENSION SYSTEM -

    the resistor satisfies the computer - so the message won't appear -

    all you do with the resistor is stick the 2 wires into the plug -
    that used to go to the original shocks - and that's it -
    ----------------------
    you do have to "waterproof" this - so it needs to be taped up really well -
    or there is a "Prettier" way to do this - I can explain if you want -

  16. #15
    monty_n_philly is offline Cadillac Owners Member
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    Re: 03 DTS.. Rear Shock Leaking and messing up tire.. help

    I did see that little line attached to the shock. So if I choose this option then this one is acceptable:

    Passive replacements: MA822

    and then get the 2 pieces from Radio Shack? If yes, then i am going to buy them and try to replace them this weekend....

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