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Unknown "humming" noise - Confirmed wheel bearing

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Old 01-09-2007, 03:01 PM
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Default Unknown "humming" noise - Confirmed wheel bearing

I will have to update after I drive home tonight, but on my way to grab some lunch I noticed this subtle but very noticeable "humming" while I held ~ 40mph. The noise "pulses." It is not constant, but it "hums" for a second, gets quiet, pulses again, get quiet, etc. I don't dare call it a "whirring" sound, because that would kill me. But it'* something spinning, hopefully just a bearing, but I can't say for sure it is not the tranny.

It didn't seem to change pitch either, but I will have to add updates later.

Any thoughts, advice before I update?
Old 01-09-2007, 03:05 PM
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Turn the radio and subs completely off and hope the noise goes away.
Old 01-09-2007, 03:40 PM
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Sounds like a possible hub bearing to me
Old 01-09-2007, 04:41 PM
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I'm outta town this w/e Pete...you can't break anything.
Old 01-09-2007, 04:46 PM
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Tires, by chance?
Old 01-09-2007, 04:47 PM
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Yeah try rotating your tires.
Old 01-09-2007, 06:41 PM
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What happens to the noise as you turn right and left? Does it get louder? Go away?
Old 01-09-2007, 08:13 PM
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The only reason I did not suspect the bearings at first was because my idle has gotten quite noisy (whiney), tranny is whiney as well. I tend to fear the worst and I figured my tranny may be acting up. TC locks up fine though, and acceleration seems fine too.

I know though that a hub bearing can go quickly and suddenly, which could explain why I hadn't heard the noises before yesterday.

On the drive home tonight, the noise(*) was constant, not at ALL like my hub bearing failure on the Chrysler (that was LOUD!). It'* coming from the passenger side, but at times it seems like it'* coming from both :? I'll keep an ear out for it, and check the wheels for play this weekend. I may just eventually change both out (if $ permits) and hope for the best.

EDIT: No changes when I turn the wheels. I wish there was because that'* how I diagnosed my last bearing failure.

Bill, my stereo was off so I could hear it

I also have crappy tires. They surely cause some noise too.
Old 01-13-2007, 12:38 AM
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Update:

Since this started a couple days ago, I can say now it'* undeniably the wheel bearing. It was extremely subtle before, but I knew I caught it at the early stages. It'* pretty LOUD now. I can hear it over my stereo on Volume 50, and it sounds exactly as my last failures did on my Chrysler. Gets quieter as I turn the wheel toward the good side (or bad side, I forget at the moment).

Has anyone driven a fair distance with a REALLY LOUD bearing? I didn't drive too far when they went on the Chrysler since I had the warranty work done on it right away. I hope mine will hold up for a couple weeks. :?


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