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Cadillac SRX Second Generation Forum - 2010+ Discussion, Vibration; Tire "shimmy" in Cadillac SRX Forums; No vibration problems at any speed with either our 10 or 13. The 10 several times, and 13 once so ...
  1. #16
    Ponyman is offline Banned
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    Re: Vibration; Tire "shimmy"

    No vibration problems at any speed with either our 10 or 13. The 10 several times, and 13 once so far were back at the local dealer for rotation, and at least one re-balance on the 10.

  2. #17
    Huey Driver is offline Cadillac Owners Fanatic
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    Re: Vibration; Tire "shimmy"

    I had a vibration, but not a 'shimmy' as you describe. Mine felt more like driving on a grooved road. The vibration came in about 60 mph and was more of a harmonic than anything. Road force balance was tried, then they replaced one of the segments of the main drive shaft. Seems to have fixed the problem.
    My vibration came in at 60-ish, and wouldnt go away (I tried up to 100mph). Same vibration when coasting at 70 in neutral, so not engine. I felt mine in the seats, and the buzzing harmonics would drive you crazy...
    They have a vibration tester I read about in the tech bulletins, so the issue should be able to be located. But agree, they are no 'all like that'. Matter of fact, one time when in for service, I had a CTS loaner, and that had at TERRIBLE rear end vibration. I mentioned to the service writer and he said that was known, but surprised that my SRX had the same issue, as it was not well known.

    I should add, that the first time they did the drive shaft (not sure which segment) it was better, but not fixed. Took it back and they said they cleaned off a glob of grease or locktite. That finished the job.

  3. #18
    adamjeeps is offline Cadillac Owners Enthusiast
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    Re: Vibration; Tire "shimmy"

    Seems like anyone who posts this problem should include the following information:

    Front wheel or all wheel drive?
    Tire make and size and wheel size?
    Wheel type (chrome tech, aluminum, etc...)?
    Feel in steering wheel, seat, or both?
    Speed vibration begins and ends (if ever)?

  4. #19
    Kauai 1 is offline Cadillac Owners Fanatic
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    Re: Vibration; Tire "shimmy"

    Thanks to all of you for your replies and suggestions. My 2012 Luxury FWD has the stock 18" wheels, with Michelin Latitude Tour HP 235/65 HR 18 tires. Adamjeeps, the vibration can be felt in front and rear seats, through the accelerator pedal, and through the steering wheel (but not like a front tire shimmy). It now starts in mid-60's and is most noticeable in the 70's; it is still strong in the lower 80's, which is as high as I have gone. The intensity varies, but backing off the accelerator seems to "excite" it.
    My belief is that the rear tires are the cause. They were road force balanced by the dealer to about 5 pounds, which is within GM specs. However, I have had tires that caused similar vibrations on other vehicles that were within force balancing specs, but were faulty and replaced by non-dealer tire shops, which cured the problems. I do plan to take my car into Discount Tire for an evaluation; the guys at our local shop are pretty sharp, and have never bs'd me.
    The front right lower control arm bushing is oil filled, and leaked onto my garage floor. This necessitated a trip to the dealer, with the subsequent replacement of the control arm and an alignment. I understand that some owners have had the vibration problem start after a dealer alignment..........any comments on this issue?
    If I had a friend/neighbor with a 2nd gen SRX, I would test drive it, and then ask the dealer to swap wheels for a test. However, I don't have this opportunity, and the dealer tells me that their other SRX's shake, rattle and roll..........such BS!!!
    Again, thanks to all Forum members for your help. If only GM would treat its owners with such concern and respect!!!
    There is much I like about this vehicle, and I have been planning on purchasing a new 2013 for my wife. I am hopeful that the "New GM" does not stonewall its Cadillac customers like the "Old GM" did, but I am fearful that the old game is still being played.

  5. #20
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    Re: Vibration; Tire "shimmy"

    Quote Originally Posted by Kauai 1 View Post
    Bad news! The problem with smooth road vibration is back, and I am very frustrated with the lack of remedial action by the dealer and GM Tech Assistance Center personnel. As I reported earlier, the dealer rebalanced the tires in March, and the vibration disappeared. We took no trips in May or June at highway speeds, so no problem noticed. Then the right front lower control arm bushing failed, and the control arm was replaced and an alignment done at the dealership. Two days later we took a trip of several hundred miles, and there it was again starting in the 70's on up.
    So, back to the dealer, who road force balanced the tires (again) and said they were within specs. I made several test drives, and the vibration now starts in the mid-60's, and is worse in the 70's. So, back to the dealer again..... Now I am told other SRX's have the same problem and GM TAC procedures show no remedy. I know the situation is not "normal", per my experience and reports by others on this Forum. I suspect the two tires that were not replaced months ago are at fault (they are on the rear, and the vibration can be felt throughout the vehicle with only a small amount of steering wheel vibration), but GM will not approve tire replacement if they can meet balance specs. I asked for the tires to be switched with another SRX without the problem, but was told they all have the problem!
    So far, calls to Cadillac Customer Assistance have been most frustrating, especially dealing with people who have no background and experience with automobile problems. (One rep was extremely rude, but that is another story.)
    I would greatly appreciate other Forum members to give their feedback. I know some have reported vibration problems, most report none.
    Thanks for your help!!
    Hello Kauai 1,

    I apologize that the concern with your wheels are back. Could you provide me with your case number or VIN in a private message so I can look into your case for you? I also apologize that someone that you spoke to on our team was very rude to you. Thank you very much for taking the time to read my post.

    Gregory W.
    Cadillac Customer Care

  6. #21
    Kauai 1 is offline Cadillac Owners Fanatic
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    Re: Vibration; Tire "shimmy"

    Thank you, Gregory W., for your offer of assistance. However, I prefer at this time not to complicate and/or confuse he matter by adding more GM employees into the mix.
    It would be extremely helpful if you would advise Forum members if the vibration described by me and others is common and normal for 2nd gen SRX's. If it is not normal, what are the probable causes, procedures that should be followed by Cadillac dealer service departments, remedies proven to solve the problem, etc.
    Thank you again; I know that other Forum members and I are looking forward to a detailed report from you and your associates regarding this matter.

  7. #22
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    Re: Vibration; Tire "shimmy"

    Kauai, I think the problem is there is no way you can 'describe' a vibration verbally... My dealership would not test drive my SRX over 60 mph due to insurance requirements (which I am happy for!)... I took the service manager (not the writer) on the main road and in less than a mile, we got the vibration, he acknowledged it, and we were turning around back to the dealer. As I said, they replaced a shaft (I have AWD) but I think it was a main shaft down the tunnel, so maybe not your issue.
    Point is, you cant fix the problem in the internet. Insist on a drive, dont expect them to 'break the law' in your car, but show them the problem. I read about the analyzer in the TechLinks (http://sandyblogs.com/techlink/?p=516). I figure they should be able to fix just about anything with that!

  8. #23
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    Re: Vibration; Tire "shimmy"

    Quote Originally Posted by Kauai 1 View Post
    Thank you, Gregory W., for your offer of assistance. However, I prefer at this time not to complicate and/or confuse he matter by adding more GM employees into the mix.
    It would be extremely helpful if you would advise Forum members if the vibration described by me and others is common and normal for 2nd gen SRX's. If it is not normal, what are the probable causes, procedures that should be followed by Cadillac dealer service departments, remedies proven to solve the problem, etc.
    Thank you again; I know that other Forum members and I are looking forward to a detailed report from you and your associates regarding this matter.
    Hello Kauai 1,

    I completely understand not wanting to add more contacts into your case. Please let me know if you change your mind and would like me to look into the situation though. We look at our customer’s concerns on a case by case basis so I would not be able to advise if the vibration is normal or not. The data from our dealerships enable us to work towards a proven remedy for these concerns. Thank you very much for taking the time to respond to my post. Please feel free to reach out to me via private message if you would like me to look into your case.

    Gregory W.
    Cadillac Customer Care

  9. #24
    Kauai 1 is offline Cadillac Owners Fanatic
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    Re: Vibration; Tire "shimmy"

    Thank you, Huey Driver, for your input. I have taken the technician for several test drives, at speed, and he acknowledges the vibration. He was to do a drive with a "hertz meter" per TAC instructions....but now (again) says the problem cannot be identified. I will check to see if the dealership uses the NVH Analyzer described on Techlink. Since my vehicle is FWD, its problem is different from yours; I strongly suspect the tires.
    And Gregory W., thanks again for your offers of assistance. If my case gets nowhere in the present Customer Assistance channels, I will private message you.
    If any other Forum members have had similar problems, please post your experiences. I will keep the Forum informed of the (hopeful) resolution of this situation.

  10. #25
    '12CTSman is offline Cadillac Owners Fanatic
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    Quote Originally Posted by Kauai 1
    Thank you, Huey Driver, for your input. I have taken the technician for several test drives, at speed, and he acknowledges the vibration. He was to do a drive with a "hertz meter" per TAC instructions....but now (again) says the problem cannot be identified. I will check to see if the dealership uses the NVH Analyzer described on Techlink. Since my vehicle is FWD, its problem is different from yours; I strongly suspect the tires.
    And Gregory W., thanks again for your offers of assistance. If my case gets nowhere in the present Customer Assistance channels, I will private message you.
    If any other Forum members have had similar problems, please post your experiences. I will keep the Forum informed of the (hopeful) resolution of this situation.
    Have the tires been dismounted and inspected? You could have a broken belt, or other internal damage from hitting a curb, or a pothole. If so, has your dealer tried to balance the wheels and tires while on the car?

  11. #26
    Crytyc is offline Cadillac Owners Member
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    Re: Vibration; Tire "shimmy"

    Thank you for describing my problem for me ! I think of it as a vibration rather than
    a "shimmy' which has always meant something like a wheel wobble on a Model A Ford
    to me.

    I can't describe the problem in any better terms than you have. It isn't detectable
    until about 65, clearly present at 70, and drives one bananas at 73, then hangs around
    to at least 85 but seems to diminish a bit there. Haven't noticed any throttle effect.

    My car is 2012 SRX AWD with Michelin Latitude Tour HP P235 55R20. Thus far my
    dealers service manager has acknowledged it, and the shop identified a tire that
    could not be brought into specs, ordered out a replacement and mounted it.

    I could not detect any improvement at all from this action. I haven't been back to them on this yet.

    I was pleased to find this site and your comments --misery loves company I guess.

    Crytyc

  12. #27
    Likely is offline Cadillac Owners Fanatic
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    Re: Vibration; Tire "shimmy"

    The dealer needs to break down all the tires and inspect the tires and wheels. You could have a wheel thats not true. Also if they find nothing, have them mount the tires a half a turn from the original mount that came from the factory. I have experienced that, and you will amazed what difference it will make in the balance...I'm no pro tech, but i grew up in a garage and service station, so had some experience with tires and wheels...

  13. #28
    Kauai 1 is offline Cadillac Owners Fanatic
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    Re: Vibration; Tire "shimmy"

    Thanks again for all who have responded. The dealer is following factory mandated procedures at this point, so we will see what transpires.
    I still suspect faulty tire(s). There have been no encounters with potholes or curbs to cause damage, however.
    Likely, I too have had tires on other vehicles remounted half-turn, and rebalanced; sometimes worked, other times didn't. The thing is, after the initial problems 5 months ago, the car rode at speed perfectly smooth.
    I will keep you all informed.............

  14. #29
    adamjeeps is offline Cadillac Owners Enthusiast
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    I'm starting to think Michelin made some bad tires in the SRX size. According to tire rack, there only 3 makers of the 20 inch size we use. I wonder if Michelin cut some corners in providing OEM tires to GM? Well maybe not, since they have been OEM for 4 years now.

    EDIT: Han anyone ever used tire balance beads? http://www.innovativebalancing.com/index.php

  15. #30
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    Re: Vibration; Tire "shimmy"

    Quote Originally Posted by Crytyc View Post
    Thank you for describing my problem for me ! I think of it as a vibration rather than
    a "shimmy' which has always meant something like a wheel wobble on a Model A Ford
    to me.

    I can't describe the problem in any better terms than you have. It isn't detectable
    until about 65, clearly present at 70, and drives one bananas at 73, then hangs around
    to at least 85 but seems to diminish a bit there. Haven't noticed any throttle effect.

    My car is 2012 SRX AWD with Michelin Latitude Tour HP P235 55R20. Thus far my
    dealers service manager has acknowledged it, and the shop identified a tire that
    could not be brought into specs, ordered out a replacement and mounted it.

    I could not detect any improvement at all from this action. I haven't been back to them on this yet.

    I was pleased to find this site and your comments --misery loves company I guess.

    Crytyc
    Hi Crytyc,

    I am sorry to hear of this ongoing issue you are experiencing on your vehicle. I see you already worked with your dealership, and the replacement and mount does not seem to have fixed the issue. I am happy you are able to get the information you are looking for from other forum members on this thread. I would like to further discuss your current situation if you would like. I can be reached via private message and look forward to hearing from you.

    Sincerely,

    Laura M.
    Cadillac Customer Care

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