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Hum noise

Old Aug 29, 2021 | 10:42 AM
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Default Hum noise

Im hearing a slight hum noise as im driving an It gets a bit louder at higher speeds.its not impacted by any turns just speed . .I have a 01 2wd,auto,6cyl.
What all should I look at ?

Thanks
 
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Old Aug 29, 2021 | 10:59 AM
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Rear bearings. Front ones will tend to get noisier on turns.
 
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Old Aug 29, 2021 | 11:13 AM
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Yep i was thinking bearings.Do these need to be done together both rear ?..One other question ,after a good drive an checking the tranny fluid ,is it normal for that bubbly fluid to be on the dipstick ?
 
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Old Aug 29, 2021 | 11:23 AM
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I would expect axle bearings to change tone on cornering as well.... Does the sound change if you get off the gas?

Depends on how bubbly the fluid is. If it's over-filled, the trans will whip air into the fluid....
 
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Old Aug 29, 2021 | 11:28 AM
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Only a lighter sound as i lift off gas ..
can I do a tire wiggle test after jacking it up to tell ?
i havent added fluid .maybe i should have let it settle a few minutes.
 
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Old Aug 29, 2021 | 11:31 AM
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Check fluid with engine running, fully warmed up, in neutral. After you have driven it a bit is best. Makes sure all the nooks and crannies are filled.

You could try jacking it up, and turning things by hand. See if anything obvious presents itself..... Any seals leaking on the rear?
 
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Old Aug 29, 2021 | 12:35 PM
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Rotate your wheels, see if anything changes.
 
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Old Aug 29, 2021 | 04:06 PM
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Originally Posted by Dodgevity
Rotate your wheels, see if anything changes.
This is a good idea.
 
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Old Aug 29, 2021 | 04:19 PM
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What does that tell me ,if its a tire ?
It has that whine like noise .
 

Last edited by hidden1; Aug 29, 2021 at 04:30 PM.
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Old Aug 29, 2021 | 04:22 PM
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If it's a tire, the noise will move with the tire. Tires can make some odd and strange sounds...... Generally, right before the blow themselves into pieces at 65 MPH.... Yeah, that's fun......
 
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