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Post by vojtazbrna on Sept 26, 2005 20:04:16 GMT -6
I know it is somewhere here, but I just can't find it. I have a slight vibration at 68-72 mph. I had the tires rotated at a local GM dealer, but it didn't do a thing. The vibration is still there. I remember reading here somewhere that there's a particular rotating machine that can handle our large tires better, but can't remember the model number of that machine. Anybody remembers? I wanna see if my dealer has it.
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Post by Custom88 on Sept 26, 2005 20:28:08 GMT -6
isn't it something along the lines of "hunter Road Force Balancing?" My memory is foggy on it. Try a search.
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Post by Letitroll98 on Sept 26, 2005 20:31:18 GMT -6
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Post by oldsauroraman1 on Sept 26, 2005 21:44:58 GMT -6
Excellent link Dan. On that site you can locate the nearest dealer that has the gsp9700.
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Post by vojtazbrna on Sept 27, 2005 16:35:55 GMT -6
wonderful! thanks a lot Dan. I knew it was something with hunter, but wasn't sure about the number. thank you very much.
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Post by vojtazbrna on Sept 27, 2005 16:38:36 GMT -6
just verified the info and my dealer does have that machine. is it possible that they would use something else? maybe i should ask them if they use that machine for all rotations.
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Post by Custom88 on Sept 27, 2005 18:33:55 GMT -6
I don't think your issue is in balancing. My Aurora had that same vibration and it still does somewhat. Replacing the stock goodyear tires made the biggest difference. The cause of the vibration from what I"ve heard, is a mix between suspension geometry, and the rigidity of the G platform. I think we all have this vibration to some extent.. atleast I know My Aurora, and both our Bonnevilles suffer from it. (all have this same chassis.)
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Post by oldsauroraman1 on Sept 27, 2005 21:08:53 GMT -6
just verified the info and my dealer does have that machine. is it possible that they would use something else? maybe i should ask them if they use that machine for all rotations. Be sure to tell the Service Advisor that you want your tires balance on that machine ONLY. You are paying for it and that is what the Advisor is there to do - to see that your vehicle is taken care of - to your satisfaction.
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Post by TJM on Sept 28, 2005 7:09:17 GMT -6
I had the same issue and after removing my wheels to clean the inside, I reinstalled and torqued to 100 in 3 increasing steps and the typical alternating pattern. now smooth
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Post by vojtazbrna on Sept 28, 2005 20:07:13 GMT -6
i think i know what also could be the cause. even though I have MXV4 Plus on all 4 wheels I replaced the front right one last winter. i hit a curb and the right one was done. so maybe that the wear is not the same on both of them? the diff is not that big, but it is noticable when looked at. unfortunately, i don't have the money now to buy a set of 4 new tires. honestly, do you think that could be the problem? thanx
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Post by oldsauroraman1 on Sept 28, 2005 21:12:54 GMT -6
You may have a belt that is shifted from hitting the curb. Hopefully, it is not a broken belt. If so, you may, possibly, notice a bulge. Have the tire checked. Putting it on a balancing machine would certainly reveal some possible problems by spinning the tire.
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Post by vojtazbrna on Oct 12, 2005 19:24:38 GMT -6
Ok, So this problem has evolved (as most of my problems do). Now I get a vibration no matter how fast I go. It is worst at around 70-75 mph and it kinda fades out over 85 mph. The whole car is shaking at around 70mph. Even my wife noticed that(as a passenger) and asked me why it was shaking that much. I can feel something even at 20mph and I believe I can hear a humming sound, too. It's been raining here in NJ for the last week....and the rain is really loud. This has been like this for the last 3-4 days. Last night, after I got home, I took off all the tires. Checked for bulges or uneven wear. Found absolutely nothing. Only the left side of the rear left tire is slightly more worn than the rigth side, but I doubt it would cause such troubles. What else do you guys think I should look for?
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Post by oldsauroraman1 on Oct 12, 2005 19:49:44 GMT -6
Look for a way to get to your dealer and get your tires balanced :-) Improper alingment can also cause some of the things you describe.
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Post by Aurora40 on Oct 12, 2005 20:22:38 GMT -6
just verified the info and my dealer does have that machine. is it possible that they would use something else? maybe i should ask them if they use that machine for all rotations. Rotation doesn't involve any machines at all other than maybe the lift. You need them balanced. This is different from rotation.
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Post by vojtazbrna on Oct 12, 2005 20:23:15 GMT -6
yeah,that's what i'm gonna do. bring it to the dealer and hopefully they'll find something.
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Post by Aurora40 on Oct 12, 2005 20:23:44 GMT -6
Ok, So this problem has evolved (as most of my problems do). Now I get a vibration no matter how fast I go. It is worst at around 70-75 mph and it kinda fades out over 85 mph. The whole car is shaking at around 70mph. Even my wife noticed that(as a passenger) and asked me why it was shaking that much. I can feel something even at 20mph and I believe I can hear a humming sound, too. It's been raining here in NJ for the last week....and the rain is really loud. This has been like this for the last 3-4 days. Last night, after I got home, I took off all the tires. Checked for bulges or uneven wear. Found absolutely nothing. Only the left side of the rear left tire is slightly more worn than the rigth side, but I doubt it would cause such troubles. What else do you guys think I should look for? I would make sure they actually tightened your lug nuts up properly. It's possible they didn't tighten a wheel at all, which would be very dangerous.
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20inchaurora
Aurora Passenger
"not your father's oldsmobile"
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Post by 20inchaurora on Oct 12, 2005 22:18:39 GMT -6
you also mentioned that you smacked itno a curb....i woudl be concerned of the fact that your wheel might be bent. re-balancing would correct the problem somewhat, but not 100%. extremely worn tires could also cause some vibration at significant speed. and also, im pretty sure that any dearlership would have adequete equipment for tire balancing. the problem most likely lies in the fact that some kid out of tech school is probably doing the balancing, and doesnt know what hes doing! i've never heard of a balancing problem being attributed to a machine. a balancer spins a wheel up to a certain speed...bigger wheels/tires sometimes just take a bit more time to get it up to speed an exception would be trying to balance 18-wheeler wheels on a passenger tire balancer.....but i'm relatively sure that any given balancer in a shop could handle our wheels/tires
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Post by vojtazbrna on Oct 13, 2005 18:11:56 GMT -6
made first available appointment with the dealer on Monday morning for balancing. i hit the curb a long time ago. this problem has been bothering me for the past 4-5 days, but i thought about that also. i tightened the lugs myself two days ago when i took all the wheels off. that was the first thing that i thought about. will see how it goes on Monday. i'll tell them about the vibration and won't leave till they find something.
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Post by betonthis1 on Oct 13, 2005 18:25:33 GMT -6
how old are your tires? i had the same problem and when i got my new wheels and tires it has stopped. but my tires seemed like they were never rotated.
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Post by vojtazbrna on Oct 13, 2005 20:05:10 GMT -6
that's gonna be my next shot if the balancing won't help. the tires are old, i guess. i've had the car for not even a year and put 30k on it already. Bought it with 66k. the michelin mxv4 plus were on it already and had some use, but looked good. really don't want to cash out the $$$ for new tires, but that might be the next step. we'll see on Monday what the dealer says. thanks for the input guys.
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Post by betonthis1 on Oct 13, 2005 21:35:14 GMT -6
yeah man those tires are soo expensive. thats why i just went with putting my money on new tires and wheels cause $450 plus is too high.
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Post by Wacko on Oct 14, 2005 7:59:30 GMT -6
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Post by vojtazbrna on Oct 14, 2005 22:46:15 GMT -6
that web page is great. will try some of the tricks this weekend. what bugs me though, is the fact that i get the vibration at any speed! literally, i can feel something at any speed. it's worst at 70-75mph, though. i noticed one thing this morning. my steering wheel is loose. only a little bit, but it's not as it should be (i think). was thinking if that could have something to do with it. dunno.
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Post by vojtazbrna on Oct 17, 2005 20:07:12 GMT -6
so I could've just thrown the $75 out of the window. brought it in this morning for balancing. took them more than an hour and didn't do SH*T!!! I'm pissed...at my car mostly. It's been taking a BIG dump lately. My mechanic should look at all those little things by the end of this week. I must say that I'm no longer so excited about driving my baby to work every day. The vibration is really annoying.
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Post by oldsauroraman1 on Oct 17, 2005 20:25:25 GMT -6
Well, ok, let's see, we've managed to show our shortage on vocabulary. Anyhow, what did they do besides balance? I mean, didn't they road test it? And, you really haven't thrown the money out, you eliminated one possibility. Believe me, that's cheap when it comes to repairs on any car these days. Take heart, there must be a cause! :-)
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Post by Wacko on Oct 17, 2005 20:31:27 GMT -6
You mentioned humming. Do you still hear it? At what speed do you hear it? I ask because a bad front hub & bearing can start humming and squealing when really bad. Would you say the the problem has gotten worse gradually or suddenly?
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Post by oldsauroraman1 on Oct 17, 2005 20:43:40 GMT -6
That's what it sounds like it could be. Bad bearings will definitely cause vibration.
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Post by vojtazbrna on Oct 17, 2005 21:06:59 GMT -6
no, they didn't road test it. are they supposed to? see, i'm not really sure about the humming. i was listening very closely today and i'm really not sure. i think there's some kinda hum that never was before, but that could just be me. this problem started about two weeks ago when I noticed a slight vibration at 68-72mph. within the next 2-3 days it got a lot worse and it's been like that for about a week or so. by "a lot worse" i mean that the vibration is at ANY SPEED and it's worst at around 75mph. tires have been rotated a week ago and balanced today. what i'm afraid of is the fact that my daily commute is 80 miles. i don't want my car to fall apart at 80mph...that would not be fun. as i said my mechanic should be able to look at it on Fri or beginning of next week...i just hope it will hold up that long. but it really hasn't changed much in the last week. let's hope so.
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Post by oldsauroraman1 on Oct 17, 2005 21:25:23 GMT -6
Did you let these folks know that you have been having a problem? If so, it seems like they would have checked things over for that kind of money.
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BNICOV
Aurora Lover
Posts: 782
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Post by BNICOV on Oct 18, 2005 9:18:55 GMT -6
Go to a tire dealer and have them look over your tires. It could be that a belt has shifted. I had Michelin X-Ones on my old car that had tread left but would hum during turns and started to vibrate. The tires were worn out even though there was tread on them. If your rubber is more than 5 years old, you should probably think about changing to new. Tires deteriorate due to sunlight, exposure to chemicals in the environment, etc...b
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