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help.. rhythmic vibration when 65mph+

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Old May 30, 2007 | 06:19 AM
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Default help.. rhythmic vibration when 65mph+

Ok here's the deal. I just changed my axles this past Saturday, and put my new SE wheels on Sunday. (using the stock tires from my SI wheels).

The steering wheel used to shake while driving past 65+mph and there would be an odd rhythmic vibration to the car. Kind of like the tire is flat but then it isn't again, you could feel it through the floor board. So I went back to costco and had them rebalance my front wheels and put the weights on the outside because they were on the inside. The vibration minimized alot. However I still have that rhytmic vibration.

Does anyone have any idea what it could be?
Could my rebuilt axles be bad?
Is there anything I could have damaged or messed up when changing the axles?
Should I get my rear wheels rebalanced as well since I have 4WS?

The rhythmic vibration also happens more when I'm turning or merging right at 30mph+. It's a vibration that comes and goes constantly.

Please helppp!!!!!!!!
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Old May 30, 2007 | 07:05 AM
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Default Re: help.. rhythmic vibration when 65mph+ (bboixtc)

wheel bearings? or is the wheel even on all the way? i know that sounds silly but those things would cause a rythmic vibration.. and if the wheel wasnt on tightened or straight.. it would make more of a vibration when you turn...
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Old May 30, 2007 | 12:22 PM
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Default Re: help.. rhythmic vibration when 65mph+ (MulticolrdLude)

Make sure that they calibrate the balancer before they rebalance. Just because the machine said they were balanced out doesnt mean sh@#. I was a manager at a Sears Auto Center and we had problems with that all the time. Also have them check the tires for run out or a hop. They will know what you are talking about. If the tires have either of those you need to replace them or deal with the vibration.
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Old May 30, 2007 | 01:32 PM
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Default Re: help.. rhythmic vibration when 65mph+ (bboixtc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bboixtc &raquo;</TD></TR><TR><TD CLASS="quote">The rhythmic vibration also happens more when I'm turning or merging right at 30mph+. It's a vibration that comes and goes constantly. </TD></TR></TABLE>

90% it's the driver side front wheel bearing. Well, could be rear too, but very likely front if you think the noise is coming from the front.

You can check it partially by jacking up the front of the car and checking for play by twisting the wheel. If there's play, check to make sure you're not seeing play in your balljoints or tie rod ends, but it's probably the wheel bearing!

Also check tie rod ends, etc., while you have that side of the car jacked up.
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Old May 30, 2007 | 03:05 PM
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Default Re: help.. rhythmic vibration when 65mph+ (Chris F)

would the wheel bearing just simply go out immediately after installing the axles?
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Old May 30, 2007 | 03:36 PM
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Default Re: help.. rhythmic vibration when 65mph+ (bboixtc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bboixtc &raquo;</TD></TR><TR><TD CLASS="quote">would the wheel bearing just simply go out immediately after installing the axles?</TD></TR></TABLE>

It could, if you didn't torque the axle nut well. It would start to fall apart.

You know, it's probably a tire, but you might re-torque your axle nuts just in case.
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Old May 30, 2007 | 03:40 PM
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Default Re: help.. rhythmic vibration when 65mph+ (Chris F)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris F &raquo;</TD></TR><TR><TD CLASS="quote">It could, if you didn't torque the axle nut well. It would start to fall apart.

You know, it's probably a tire, but you might re-torque your axle nuts just in case.</TD></TR></TABLE>

do you know the ft/lbs to tq the axle nut to? because i didn't have a torque wrench at all during this entire thing.

Costco however, tq'ed down my tires on properly.
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Old May 31, 2007 | 05:37 AM
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Default Re: help.. rhythmic vibration when 65mph+ (bboixtc)

also theres only supposed to be weights on the outside right?
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Old May 31, 2007 | 07:51 AM
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Default Re: help.. rhythmic vibration when 65mph+ (bboixtc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bboixtc &raquo;</TD></TR><TR><TD CLASS="quote">

do you know the ft/lbs to tq the axle nut to? because i didn't have a torque wrench at all during this entire thing..</TD></TR></TABLE>

Dunno, 130-150 ft-lbs? I only ever knew the torque spec for my DC2, it was like 120-130. I always over-torque it because I had problems with the bearings coming loose if I didn't. Your mileage may vary!
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Old May 31, 2007 | 08:58 AM
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Default Re: help.. rhythmic vibration when 65mph+ (Chris F)

I just got the rears rebalanced. It's definitely not the tires.
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Old May 31, 2007 | 09:17 AM
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Default

im having the same problem but only in high speeds. but i think my tires are pretty bad
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Old May 31, 2007 | 10:12 AM
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Default Re: (outlawstar27)

ughhhhh it's pissing me off so much. It definitely happens when I turn right at higher speeds 60-65+ sometimes even at 40+mph and when i'm going straight. Plus my car now pulls to the left when I let go of the steering wheel. It used to go slightly right. but now it pulls to the left alot.

When I'm going slow it's fine. Also when I'm going to the left it seems fine. What should I do next since it's not the balancing.
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Old May 31, 2007 | 11:02 AM
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Default Re: (bboixtc)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by bboixtc &raquo;</TD></TR><TR><TD CLASS="quote">ughhhhh it's pissing me off so much. It definitely happens when I turn right at higher speeds 60-65+ sometimes even at 40+mph and when i'm going straight. Plus my car now pulls to the left when I let go of the steering wheel. It used to go slightly right. but now it pulls to the left alot.

When I'm going slow it's fine. Also when I'm going to the left it seems fine. What should I do next since it's not the balancing.</TD></TR></TABLE>

Jack the driver side front up and check for play in the wheel bearing and tie rod end.
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Old Jun 24, 2007 | 08:20 AM
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Default Re: help.. rhythmic vibration when 65mph+ (bboixtc)

did you reinstall dynamic balancer on half drive shaft ?
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Old Jun 24, 2007 | 09:07 AM
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Default Re: help.. rhythmic vibration when 65mph+ (1988HPSI)

sorry to be a nub, but what's that?

also, I checked, and it's not the wheel bearing.
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Old Jun 24, 2007 | 09:40 AM
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Default Re: help.. rhythmic vibration when 65mph+ (bboixtc)

go to :
http://www.bernardiparts.com/S...5.GIF

item 17 left side & 18 right side
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Old Jun 24, 2007 | 09:42 AM
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Default Re: help.. rhythmic vibration when 65mph+ (1988HPSI)

any pulling would either be a brake dragging or alignment issue most likely
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Old Jun 24, 2007 | 09:51 AM
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Default Re: help.. rhythmic vibration when 65mph+ (1988HPSI)

all I did was pull out the old axle and put in the new one. my car is auto with abs.
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Old Jun 24, 2007 | 10:02 AM
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Default Re: (outlawstar27)

I have the same problem, but I have bad tires as well. I'll check next time I can get her jacked up for wheel play to see if it's my bearings. Dunno.
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Old Jun 24, 2007 | 08:09 PM
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Default Re: (ECX)

I am assuming your running aftermarket axles since you got them installed at costco? Aftermarket axles are notorious for not being true, to check this yourself jack up the front of the car, place jack stands, take the wheels off and run your car in first gear at a very slow speed obviously, look under the car and see if the axles are turning in a oval pattern, if so it's your axles...


Second: You need to replace your tires..


Third: Never use a computer alignment they are useless. You need to find someone where you are that specilaizes in hand alignments and uses a pit.
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Old Jun 25, 2007 | 05:55 AM
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Default Re: (Halo)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Halo &raquo;</TD></TR><TR><TD CLASS="quote">I am assuming your running aftermarket axles since you got them installed at costco? Aftermarket axles are notorious for not being true, to check this yourself jack up the front of the car, place jack stands, take the wheels off and run your car in first gear at a very slow speed obviously, look under the car and see if the axles are turning in a oval pattern, if so it's your axles...


Second: You need to replace your tires..


Third: Never use a computer alignment they are useless. You need to find someone where you are that specilaizes in hand alignments and uses a pit.</TD></TR></TABLE>

1st: No I did not get the axles installed at costco because they only do tires. I got the axles at a local parts store.

2nd: Why do I have to replace my tires? They are the same tires that were on my SI wheels and I just got them transfered over to my SE wheels at costco, which they rebalanced several times to make sure the vibration was not caused by them.

3rd: Any places you would recommend?
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Old Jun 25, 2007 | 07:05 AM
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Default Re: (bboixtc)

Doesn't matter where you got your axles installed they are still aftermarket..Do your axles come with harmonic balancers like the oems one do?

I mention your tires because you said you drove on them before and the vibration was bad..If you drove on those tires for an extended period you could have created uneven tire wear contributing to what's going on now with your new wheels. Also depending on how they installed your axles you may need an alignment.
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Old Jun 25, 2007 | 08:07 AM
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I would say its a shifted belt in one of the tires.

If you want to see if the wheel bearing is bad, jack up one corner of the car at a time and try to jiggle the wheel both vertically and horizontally.
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Old Jun 25, 2007 | 09:22 AM
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Default Re: (mgags7)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mgags7 &raquo;</TD></TR><TR><TD CLASS="quote">I would say its a shifted belt in one of the tires.

If you want to see if the wheel bearing is bad, jack up one corner of the car at a time and try to jiggle the wheel both vertically and horizontally.</TD></TR></TABLE>

how would the belt shift if they were on my SI wheels and I had no problem?


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Halo &raquo;</TD></TR><TR><TD CLASS="quote">Doesn't matter where you got your axles installed they are still aftermarket..Do your axles come with harmonic balancers like the oems one do?

I mention your tires because you said you drove on them before and the vibration was bad..If you drove on those tires for an extended period you could have created uneven tire wear contributing to what's going on now with your new wheels. Also depending on how they installed your axles you may need an alignment.</TD></TR></TABLE>

I have no idea. What do they look like. The diagram isn't very clear. No I stated over and over that my tires are fine. I never had any problems with the tires ever. I got them rebalanced to make sure it wasn't the cause of the problem. I definately will get an alignment though. Do 4th gen 4ws have a special instruction for alignment?
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Old Jun 25, 2007 | 09:56 AM
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Default Re: (bboixtc)

the harmonic balancer looks like a rubber donut around the axle shaft
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