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Diff Whine...what causes it? Mine is shocking...please help! 

 

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 Post subject: Diff Whine...what causes it? Mine is shocking...please help!
Posted: Wed Aug 30, 2006 4:39 pm 
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My EL XR6 diff whine is getting VERY annoying...its not just at certain speeds or anything, its ALWAYS there...gets higher and louder when speedling up...it is just as loud as the engine sound if not more so...motorway driving is a nightmare...

What is the general cause of this? Is it difficult to repair whatever the problem is? Im pretty decent with cars, can do most things, but have never touched the diff or tranny before.

Anyone know much about this?

Cheers!
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Posted: Wed Aug 30, 2006 4:46 pm 
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Does it get worse when you back off? If it is constant with speed then it could be wheel or diff bearings or it could even be tyres. First stop would be to check the Oil level in the diff.

 

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Posted: Wed Aug 30, 2006 4:59 pm 
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if the noise doesnt change on/off the go pedal its probably a bearing.,.. when was the last time for front bearings were inspected and repacked?
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Posted: Wed Aug 30, 2006 6:42 pm 
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the sound increases in volume and pitch as the speed increases...I also have the diff clunk...
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Posted: Wed Aug 30, 2006 6:55 pm 
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but if your going say 100km/h then back off acceleration but still coasting at that speed does the noise stay same or go quiet?
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Posted: Wed Aug 30, 2006 8:59 pm 
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stays exactly the same when coasting.
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Posted: Wed Aug 30, 2006 9:14 pm 
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you have stuffed bearing then, when i got my $350 wrecker special LSD put in my front left bearing went WHILE they had the car so i thought it was the diff till someone hung their head out my passenger window and ID'd the sound as a wheel bearing

 

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Posted: Wed Aug 30, 2006 11:34 pm 
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how lowd is it and can you actually feel the bearings mashing at under 30km/h? Looks like your planetarey bearings have gooone and its time for a rebuild center. Lookin at between 4 and 1300 bucks there depending on who does the work.
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Posted: Wed Aug 30, 2006 11:36 pm 
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xcabbi wrote:
how lowd is it and can you actually feel the bearings mashing at under 30km/h? Looks like your planetarey bearings have gooone and its time for a rebuild center. Lookin at between 4 and 1300 bucks there depending on who does the work.


who would rebiuld a diff centre for 4 bucks? :P

 

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Posted: Wed Aug 30, 2006 11:38 pm 
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I meant 400 but I'm half tanked at the moment
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Posted: Thu Aug 31, 2006 7:29 am 
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bugger....cant really afford much ATM with rego due end of this month...Im not really game to pull the rear axle off either if thats whats required...well, it looks like it'll just have to wait for a while...might take it somewhere anyway and get a quote...thanks for all the help...
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Posted: Thu Aug 31, 2006 10:56 am 
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really sounds like a wheel bearing to me there like $25 a corner id be checking them out well before i went spending cash on a diff rebuild.
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Posted: Thu Aug 31, 2006 11:31 am 
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Yea, I suppose its worth redoing them, even if its not them, may as well do it!

Its a simple enough job...
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Posted: Thu Aug 31, 2006 4:02 pm 
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just take it to a suspension place and get one of theyre free safety inspections, thus getting them to identify the noise
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Posted: Fri Sep 01, 2006 8:35 pm 
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Was going to replace the rear wheel bearings (yea i know they aren't wheel bearings a** uch), but after reading gregories, it seems a press and press plate is needed to replace the bearings...too much effort...

Might at least pull them out and cleana nd regrease them. See how they look.
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