Rear shock replacement

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Cadillac Catera and Cimarron Forum Discussion, Rear shock replacement in Past Cadillac Vehicle Discussion; I have heard that you can replace the rear shocks on a Catera with shocks for a new series GTO ...
  1. #1
    jimbrunton is offline Cadillac Owners Member
    Automobile(s): 2000 Catera
    Join Date
    May 2012
    Tampa, Florida

    Rear shock replacement

    I have heard that you can replace the rear shocks on a Catera with shocks for a new series GTO specified shocks. Does anyone know if you do this does the "Leveling" light go out on the dash?


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  3. #2
    kaustein is offline Cadillac Owners Enthusiast
    Automobile(s): Cadillac
    Join Date
    Jul 2008

    Re: Rear shock replacement

    Before attempting, make sure you have no broken springs

  4. #3
    elvin315's Avatar
    elvin315 is offline Cadillac Owners Connoisseur
    Automobile(s): Platinum 2001 Cadillac Catera Sport
    Join Date
    Jan 2007
    Warwick, NY

    Re: Rear shock replacement

    Yes & No. The GTO shocks fit but you lose the self-leveling feature and the light stays on. There are a few ways to disable the self-leveling thus killing the light. The simplest is to move the locating key on the rear swing arm. Drawing courtesy of CateraMV6:

    Photo courtesy of CateraMV6:

    You can also swap the GTO springs over. They'll lower the Catera approx. 1 inch.
    NOTE: the front GTO springs are swappable but not the struts.

  5. #4
    JBCadi is offline Cadillac Owners Member
    Automobile(s): Catera
    Join Date
    Sep 2011

    Re: Rear shock replacement

    I didn't realize changing to the Monroe MA825 air shocks that I would lose ALC. My original problem was after 20 minutes the Leveling light flashed constantly. I swapped the shocks (the fittings to the air line are not the same so I used vacuum line near the factory 'T' connection - source air line and 2 shock lines come together near the rear passenger shock). Now, when I start the car, the Leveling light is on constantly, then after 15-20 minutes starts to flash. I will check the air lines with soap/water spray but it looks like I have to adjust the tab as shown above. I still want the ALC to work or I would have replaced the air shocks with standard shocks. Any suggestions?

  6. #5
    hgqguy's Avatar
    hgqguy is offline Cadillac Owners Fanatic
    Automobile(s): catera
    Join Date
    Nov 2009
    Rochester NY

    Re: Rear shock replacement

    It sounds like you have broken springs causeing the car not to lift to correct level.
    I replaced my shocks with monroe shocks, and I by passed the auto fill system, and put an old school manual air valve to fill as I wanted it.

    But if you adapted the nipple fromt he factory system to fit your monroe shocks it will work.. so if it is all hooked up proper with no leaks, it is your springs.. prolly the bottom coil is broken off. Both of mine where.

  7. #6
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
    Automobile(s): 2001 Seville STS, 1990 Seville (RIP), 1972 Sedan Deville
    Join Date
    Sep 2010
    East Boston MA.

  8. #7
    JohnJJO's Avatar
    JohnJJO is offline Cadillac Owners Fanatic
    Automobile(s): 2000 Catera Sport
    Join Date
    Mar 2012
    Wilmington, NC

    Re: Rear shock replacement

    there is leveling sensor on rear column. who analyze level and giving order to air compressor to pump that located up front on passenger side. your sensor broke !!!! i have same problem. to replace it for new part it like $400!!! so when i installed Monroe MA825 i just pump them with my garage air compressor to 80psi (80psi it normal pressure for catera. i found in alldata)
    but i didnt connect shock line to catera system just between each other and used valve that was include in Monroe installation kit.
    to stop light flash i just disable sensor.

  9. #8
    globuslive's Avatar
    globuslive is offline Cadillac Owners Fanatic
    Automobile(s): Catera 2000 & Catera 2001
    Join Date
    Feb 2011

    Re: Rear shock replacement

    Hey guys. I installed today Monroe 825's. No issues, leveling works perfectly. what a problem did you have connecting original hoses to new connections??? All you have to do is to cut old end, put new or even keep old 1 O ring, and tight it to the shocks. That's all. No leaking, looks almost as original, and very tight ride. I love it so far. Will see how they go with the time.

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