2007 Cadillac STS V8 WORST RIDE QUALITY! Help! - Page 3

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Cadillac STS Forum - 2005 through 2012 Discussion, 2007 Cadillac STS V8 WORST RIDE QUALITY! Help! in Past Cadillac Vehicle Discussion; My dad use to run many horses down at mountianeer! He only has one now though....
  1. #31
    1BadCadSTS's Avatar
    1BadCadSTS is offline Cadillac Owners Connoisseur
    Automobile(s): 05 STS4
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    My dad use to run many horses down at mountianeer! He only has one now though.

  2. #32
    Carvone is offline Cadillac Owners Fanatic
    Automobile(s): 07 STS 1SG & 10 STS 1SG
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    Nov 2008

    Re: 2007 Cadillac STS V8 WORST RIDE QUALITY! Help!

    Quote Originally Posted by Karsntrux View Post
    Was yours similar to what I was describing, like skating on ice? Prior to replacing the struts?
    Another odd question, does your STS have a wood grain strip down the center of the gear selector? Mine doesn't, and every one I see with wood trim has it. I have all the other wood trim, just not on the gear selector.
    No my car did not ride anything like you describe, even with bad front struts. I do think "Tourist" is on too something though, it sounds 'from what you describe' that the rear shocks are all the way aired up and making it ride like that C3500 work van. Go check out that place that does MRC work and they would be able to tell you what is wrong within the hour most likely. Also your likely to get off relatively cheap, sounds like the shocks are doing their job and it is the air pump or switch that is defective. (just guessing though)

    Yes, my gear shift has the same wood grain in the middle of the knob as is on the dash, console and doors. You easily switch that out on yours if you ever run across one you like at a junk yard or on ebay. Good Luck.

  3. #33
    EChas3's Avatar
    EChas3 is online now Cadillac Owners Master
    Automobile(s): 2006 STS4 V8 1SG & 2007 STS V8 1SE
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    Cedarburg, WI

    Re: 2007 Cadillac STS V8 WORST RIDE QUALITY! Help!

    There are two different systems on the STS, depending on the suspension options.

    The tests you describe indicate serious issues that any dealer should be able to fix.

  4. #34
    jimmbo is offline Cadillac Owners Fanatic
    Automobile(s): 2008 sts
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    Re: 2007 Cadillac STS V8 WORST RIDE QUALITY! Help!

    These cars ride like they have wooden tires

  5. #35
    Ludacrisvp's Avatar
    Ludacrisvp is offline Cadillac Owners Connoisseur
    Automobile(s): 08 STS4 V8 F55 1SG Euro tails & 01 Monte SS Pace Car
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    St Michael, MN
    Quote Originally Posted by jimmbo View Post
    These cars ride like they have wooden tires
    Lol indeed

  6. #36
    Billysurcan is offline Awaiting Email Confirmation
    Automobile(s): 2007 STS AWD 4.6
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    Aug 2015

    Re: 2007 Cadillac STS V8 WORST RIDE QUALITY! Help!

    My 2007 acts exactly the same. I'm told the front struts are gone but I'm not sure. Mine doesn't respond to the ride switch from touring to perf.
    I have found that if I disconnect the battery, and cause the onboard computer to reboot that the car seams to ride better for a short time.
    The computer is suppose to read the shocks 1000 times a min., and I wander if the computer is at fault. The car doesn't appear to be sitting low
    but rides as if the front has no shocks at all.

  7. #37
    MIVet28 is offline Cadillac Owners Member
    Automobile(s): 2006 STS 1SG V8 - 95k, 2002.5 STS - 151k
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    White Lake, MI

    Re: 2007 Cadillac STS V8 WORST RIDE QUALITY! Help!

    Karsntrux, I had the exact same issues with the 06 1SG I bought last August. EVERY single bump, crack or manhole cover would make the car shutter and feel like it was going to explode. I was considering selling the car, but, to my surprise, the front lower control arm bushings were destroyed. Once I replaced them(replaced both LCAs), it was much much better. At the time, the struts were all aftermarket and the previous owner had applied the ole resistor trick to all four corners. I replaced all four with OEM struts and the ride improved greatly, but a break in the wiring at the front right wheel speed sensor was preventing the ABS, T/C, stability system and adaptive cruise control from coming on. I got that straightened out this weekend and everything came back to life. This car is riding beautifully now. One last fix I have yet to do is replace the air lines for the rear leveling system. I'm expecting an even better ride by next Sunday when that's complete.

    Hope this helps!

  8. #38
    2manyhotrods's Avatar
    2manyhotrods is offline Cadillac Owners Fanatic
    Automobile(s): 1999 Eldorado ETC coupe.
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    Re: 2007 Cadillac STS V8 WORST RIDE QUALITY! Help!

    Quote Originally Posted by Karsntrux View Post
    I'm in a jam here. I LOOVE my 2007 Cadillac STS V8 RWD, F55 Magenride, with Sport Suspension, I believe FE3. It's what I believe to be on of the rarer cars, 6 Lug Wheels and Hubs, which I've been told is from the CTS V, but mine are stock. Brembo Brakes front and rear. Not a V. All stock. EG Grille and Body Kit.
    I love this car, but this is the worst ride quality I've ever felt in my life. I'm a used car dealer and I drove every type of 05-07 STS they sell prior to buying this one. MagneRide and Standard. All of which rode acceptable to me. Some better than others. I purchased this one, cheap, assuming the suspension was bad. 3 Cadillac dealers later, 2 independent shops later, all I've been told is my suspension is perfectly fine. As I said I'm a car dealer, and I drive more than my fair share of vehicles. Never in my life have I been in a car that rides so poorly. Even at 10mph, it absorbs no impact. Every bump shakes the entire vehicle. I feel no difference between Touring and Perf. modes. No leaks. No error codes.
    My questions are as follows. Does anyone else feel the same way about their STS? Is there some mysterious issue that can go un detected to cause this? Am I just SOL? If this is "Just how it rides." Which I truly just do not believe. If that is so, is it possible or feasible, to convert this car to a softer suspension, say base FE1/FE2, but using a simulator computer and base STS suspension setup, magnetic or not.
    I love everything about this car, minus the ride quality. I don't mind spending the dough to do the swap properly, if it's possible. As I said, I purchased this car at a steal of a price, from a man that just needed the cash.
    Any help is greatly appreciated. Thank you!
    Attachment 106324
    Did you ever try reducing tire pressure? The one I took off our lot rode hard as well, too stiff for my spine and ass.
    I lowered the tire pressure to 26.5 pounds. I then lowered it to 23 but feared I would damage a rim on the crappy Massachusetts secondary roads.
    Back up to 26.5 pounds now. It acceptable but I don't feel comfortable in it.

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