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wildrussian
 Post subject: Little Humming at 45 mhp
PostPosted: Tue Sep 18, 2007 8:13 am 
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So here is the deal, when I get to 45 mph I can hear humming. Its not loud but I can still tell its there. The humming quits at about 50 mhp. Any ideas what it could be? Thanks guys.

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riptricket
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PostPosted: Tue Sep 18, 2007 8:38 am 
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tires maybe...my BFG AT's humfrom 35-70mph! and i have no complaints... the g/f does however.
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Dje Ryu
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PostPosted: Tue Sep 18, 2007 9:03 am 
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Been through any thick mud lately? Could be some on the driveline causing it to be unbalanced, maybe.

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BeepBeepJeepJeep
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PostPosted: Tue Sep 18, 2007 9:08 am 
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Check your rear differential for water. Now.

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DarbyWalters
 Post subject: Re: Little Humming at 45 mhp
PostPosted: Tue Sep 18, 2007 11:36 am 
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wildrussian wrote:
So here is the deal, when I get to 45 mph I can hear humming. Its not loud but I can still tell its there. The humming quits at about 50 mhp. Any ideas what it could be? Thanks guys.


I can't even touch this one :twisted: I would have to ban myself :shock:

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Drag Strip:Reac=.1078_60ft=2.224_1/8=10.39@64.8mph_1/4+16.46@80.8mph
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wildrussian
 Post subject:
PostPosted: Tue Sep 18, 2007 12:18 pm 
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My tires are stock so I don't think its that.
Haven't took it out in mud lately either.
Differential fluid is good checked it alittle while ago.

Darby, don't touch it but just tell me what it could be :lol:

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DarbyWalters
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PostPosted: Tue Sep 18, 2007 1:07 pm 
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Maybe tread separation on a tire?

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Drag Strip:Reac=.1078_60ft=2.224_1/8=10.39@64.8mph_1/4+16.46@80.8mph
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tommudd
 Post subject:
PostPosted: Tue Sep 18, 2007 1:20 pm 
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added anything lately to the exterior that would be causing hum/whistle type sound? Nothing under neath that is rubbing somewhere? Not sure about tread coming apart, that would be more all the time ...maybe???? I guess replace the muffler with a louder one or new speakers so you can crank it up!

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wildrussian
 Post subject:
PostPosted: Tue Sep 18, 2007 2:43 pm 
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No didnt add anything and did check the tires while I was at lunch and they looked normal to me. The humming doesn't really bother me that much what bothers me is if it was there before I got an alignment or not. Could it be something to do with alignment?

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carroll952
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PostPosted: Tue Sep 18, 2007 5:08 pm 
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You know, my KJ did that from day one. 45-50mph only under power. If his rear end was going bad, wouldn't it make noise at any speed? I'd guess it probably has something to do with driveline angles. I saw people complaining about this on edmunds when I googled it in '05 (people on edmunds complain about everything though).

Now I did get it to stop. That required a Frankenlift and some MT/Rs. The whole KJ hums at all speeds now, kinda relaxing :lol:

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