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Old 11-19-2011, 07:55 PM
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Lightbulb whining noise when accelerating

good day to everyone

i just got my jeep last month and been wondering what's the whining noise when accelerating at 100kph and its gets louder until i reach 140kph it stops. it sound like i have a TC or SC. and when i let off my foot on gas pedal, i didn't hear any whining noise and when i let my foot on the gas pedal again, i can hear that noise again.

can anybody heard this noise too?

btw, just replaced differential gear oil with lucas 75w-140 and added friction modifier but i still hear that whining noise. i took off the cover and drain the oil, and found some metal shavings on the oil.

any feedback is highly appreciated...

thanks and more power.
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Old 11-19-2011, 08:07 PM
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Re: whining noise when accelerating

Possibly bearings. Determine if its front or rear, i remember that happened to my old zj.
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Old 11-21-2011, 02:08 PM
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Re: whining noise when accelerating

it is possible that my bearing gone bad? i only had 66000kms on my jeep...

any idea?

thanks
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Old 11-21-2011, 07:33 PM
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Re: whining noise when accelerating

were your diff's making noise before you changed the oil?
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Old 11-21-2011, 07:54 PM
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Re: whining noise when accelerating

When I had diff oil changed, it was overfilled and it did make some noise. Since I have drained some oil, the noise is gone.
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Old 11-22-2011, 05:30 PM
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Re: whining noise when accelerating

were your diff's making noise before you changed the oil?

yeah, it making the same noise before i changed my diff oil.

in addition to that, i feel some vibration (wwrrr... wwrrrr..) in the floor and in the seat as the noise faded when i reached 140kph and when i gas it up until 160kph the noise and vibration totally gone...

any more ideas?

thanks
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