Mystic sound.. rear axle?
#1
Mystic sound.. rear axle?
Hey!
I own a black camaro v6 -94. Before you criticising my spelling, I am from sweden Now to the problem.
Between 50-95km/h I hear a whining sound from what I think is the rear axle. Its kind a hard to explain the sound but something like a flute sound. Sounds something like air leaking kind of sound.
When i let my foot of the pedal the sound is disappearing. Only when I accelerate or driving steady the sound comes. And after 95km/h I think there are other sounds "taking over". I think the best word for the sound is a whine sound. I really appreciate all help I can get!!
If any help 1 mile is 1,6 km.
I own a black camaro v6 -94. Before you criticising my spelling, I am from sweden Now to the problem.
Between 50-95km/h I hear a whining sound from what I think is the rear axle. Its kind a hard to explain the sound but something like a flute sound. Sounds something like air leaking kind of sound.
When i let my foot of the pedal the sound is disappearing. Only when I accelerate or driving steady the sound comes. And after 95km/h I think there are other sounds "taking over". I think the best word for the sound is a whine sound. I really appreciate all help I can get!!
If any help 1 mile is 1,6 km.
#3
RE: Mystic sound.. rear axle?
[X(] most likely its your pinion bearings in the rear end. the best way to find the noises source is to jack the car up (dont forget to use jack stands or my mommy will come beat you to death) then with the car running, in gear use a long screwdriver or big wrench or better an auto stethascope, place one end against your ear and the other on the suspected area of noise and listen and compare to other suspect areas. the one that is making the noise will be much louder than the rest. id check carrier and pinion bearings, axle bearings and trans output or tailshaft bearings.
you will need to simulate the same conditions while on the jackstands as on the road so dont be afraid to bring it up to the same speed. from what you describe my bet is on pinion bearing but hopefully you will find the offending noise using the method above kurt
you will need to simulate the same conditions while on the jackstands as on the road so dont be afraid to bring it up to the same speed. from what you describe my bet is on pinion bearing but hopefully you will find the offending noise using the method above kurt
#4
RE: Mystic sound.. rear axle?
We call it gear wine, a low to mid frequency wine that changes intensity with vehicle speed or load. It is basicly a gear clearance issue caused by excessive gear and/or bearing ware. If you have a pinion bearing failure, you will get a groaning or low freqency rumble sound which will change relative to vehicle speed. A carrier, or side bearingwill produce a similar type of noise, but, will only be most noticable under load or acceleration. As the bearing s ware the contact pattern and backlash change causing the wine you are describing.If you do not know how to inspect the gears for ware I suggest taking it to a specialist. Just to give you an idea pull the cover and inspect the fluid, If it has a dull gray appearance then you most likely need gears, If it has a shinney metal flake look, that's bearing material.Chances are you may find both.
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