1996 Cadillac DeVille Logo
Anonymous Posted on Dec 30, 2010

I had the suspension on my 1996 Cadillac DeVille converted from air to coils to the tune of $1686.95 and used bushings for $398. I asked them to stop my car from bouncing/sliding when I hit bumps, car still does the same thing. I have asked them to correct the problem but they claim they don't feel anything. Should I get my money back and why is my traction control and service air ride control still on if they so called fixed the problem?

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Jonah Oneal

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  • Cadillac Master 14,092 Answers
  • Posted on Dec 30, 2010
Jonah Oneal
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ALL YOU NEED NEW AIR SHOCKS. THAT WHY CAR IS BOUNCING.IF YOUR AIR RIDE CONTROL LIGHT ON YOU HAVE PROBLEM IN THE ROAD SENSING SUSPENSION CONTROL OR THE AIR COMPRESSOR NOT WORKING. YOU PAID THEM TO FIX CAR IF THEY CANT. GET MONEY BACK TAKE CAR TO DEALERSHIP. VECHICLES LIKE CADILLACS MERCEDES BMW JAGUAR VOLKSWAGON AND VOLVO THESE ARE SPECIAL CARS NOT EVERY BODY CAR SERVICE OR WORK ON THEM. THEY ARE EXPENSIVE HAVE HI TECH PCM ELECTRONIC CONTROL SYSTEMS ON BOARD.

Testimonial: "Thanks a bunch hotchevy1965!!!"

Duane Wong

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  • Cadillac Master 6,826 Answers
  • Posted on Dec 30, 2010
Duane Wong
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Some thoughts:

Oh, ok, well this is a modification that is usually not recommended by my instructors from auto mechanics school, even though it is possible to perform.

The traction control problem likely has to do with the wheel speed sensors not giving a readable signal to the traction control computer which is integrated with the ABS.

The service air ride control problem likely has to do with a signal to the ride control not getting a proper resistance which should be present when the air shocks are keeping the car at the correct ride level height.

I have to say that on my 1997 Cadillac Deville Limo, I don't experience any bouncing/sliding when hitting bumps.

And, Cadillac, has a good reputation for having a good ride, on most of their car lineups.

In addition, I thought that the stock car had coil springs as well as air shocks, and that the modification you refer to may only replace the air shocks with regular shocks.

I would hope that after spending that amount of money that the problem would be solved. Try to get a warranty solution, but I'm afraid that any technician that modifies the suspension in this way may not be inclined to give a full refund, if the parts are already installed and used for any length of time.

I would, try, however, to get a refund or try to follow up and see what can be done about this problem.

I wish you luck in solving your ride problem.

  • 1 more comment 
  • Anonymous Dec 31, 2010

    @ duane_wong.. now that u mention it my abs light has been on. It turned off a few times but came back on... I do have a year warranty on the services and parts and the work was done in Oct. 2010. I am going to try one more time to allow them to correct the problem and if not I want ALL of my $$$$ back... Thnx for your help it is greatly appreciated!

  • Duane Wong
    Duane Wong Dec 31, 2010

    My pleasure.

  • Duane Wong
    Duane Wong Dec 31, 2010

    I have the same abs problem that you have with the abs and traction control lights going on about the same time due to a bad sensor. However, it seems to go on and off randomly, and when it is really frigid, the system actually works. And, that's when I need it, when it is really cold and icy. Therefore, I don't feel like changing the hub assembly, at this point in time, which would cost me about $792 for the part for the Heavy Duty Suspension that I have on my Limousine.

    Good luck on getting your problems solved at your automotive service center.

    Have a good new year.

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