Suspension and Chassis Questions about your suspension? Need chassis advice?

Odd Humming

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Old Feb 3, 2007 | 10:33 AM
  #1  
90CamaroTBI's Avatar
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
Odd Humming

Guys I have been trying to figure out whats wrong with the front of my car. The faster you go, the louder this humming noise is from the front. I suspect it could be a wheel bearing, but you can feel the whole steady vibration inside the car. When you turn the wheel left, it stays constant, when you turn it right the noise goes away for maybe a second and then comes back. I am going to start with the right side wheel bearing and then see what happens. Any other suggestions on this guys?
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Old Feb 3, 2007 | 07:45 PM
  #2  
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From: MI, in ohio for college
Car: 91 camaro T-Tops
Engine: L03
Transmission: Borg T5
Axle/Gears: 3.23
first off, if the noise goes away on right turns, that means IF IT IS a wheel bearing it's the right side. Wheel bearings make more noise when "loaded" meaning more wieght transfered to that side. turning right lifts wieght off of the inside wheel and transfers to the outside, adding more of a "load" that bearing. hence right turn the noise goes away, right bearing = bad.
Not that the bearings are expensive for a serviceable bearing style vehicle, but check the bearing preload and service the bearings on both sides.

HOWEVER, explain the noise more extensively. what speed does it start at, how bad is the "vibration" ... etc. Drive along a wall in a quiet area with the windows down and listen to see if you can hear and echo of a bearing goin out.
are the tires worn unevenly? "Feathering" or out of balance? If your tire tread has uneven wear or feathering (tread almost feels as if it were a "saw blade") that can cause a noise concern.
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Old Feb 7, 2007 | 08:27 AM
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From: southern maryland
Car: 2012 Ram express
Engine: 5.7 hemi
Transmission: auto
Axle/Gears: 3.55
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Old Feb 7, 2007 | 08:28 AM
  #4  
90CamaroTBI's Avatar
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
The noise begins at around thirty and the vibration is not violent, it is just loud and you can feel it. The tires are old and dryrotted, but the tire wear dont look out of the ordinary.
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Old Feb 7, 2007 | 11:04 AM
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What happened when you put the rear tires on the front?
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Old Feb 8, 2007 | 08:00 AM
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From: Waldorf, MD
Car: 91 Formula, 89 IROC
Engine: LB9, LB9
Transmission: 700R4, 700R4
Axle/Gears: Posi 2.73, Posi 2.73
I never did that??
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