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Old 08-06-2003, 20:26   #1 (permalink)
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Diff Whine

I have recently noticed a strange whining noise while driving. im assuming its from the diff. It is like a high pitch sound that under acceleration, on the freeway you can hear. Car is a EL XR8 done 75,000km. anyone else experience simular problem with this at all.
Original oil is in diff so i might replace that and see oif it changes
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Old 08-07-2003, 04:38   #2 (permalink)
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Re: Diff Whine

Probably a pinion bearing.
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Old 08-08-2003, 18:08   #3 (permalink)
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my dads ef fairmont ghia does the same thing...its more a growl/ moan than a whine..any idea what that'd be?
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Old 08-10-2003, 07:16   #4 (permalink)
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Re: Diff Whine

well i had a whine ages ago, sort of like engine noise through your stereo?

well this turned to be a stuffed auto. All the metal scraps get caught in the filter causing restriction in it, which causes the whining noise.
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Old 09-18-2003, 05:01   #5 (permalink)
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Sounds like the exact thing happening to my 5.0 EB Fairmont. I've changed the oil, but the whine is still there, and exceedingly annoying when on the open road. I'm suspecting pinion bearing wear (as suggested by WBT56).
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Old 09-18-2003, 13:10   #6 (permalink)
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Re: Diff Whine

Thomas,

Try some Castrol SAF-XA diff oil, just the right stuff for your diff. Its fully synthetic (and bloody expensive), but is about the best you can get.

You'll need 1.65 litres, so 2 litres will cost ya around $52.

cheers
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Last edited by TopGhia; 09-18-2003 at 13:22.
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Old 09-26-2003, 02:52   #7 (permalink)
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Re: Diff Whine

I forgot to mention in my last post, that, there are two pinion bearings - one rear, and one up by the yoke. I suspect that the front one would probably be the producing the whine (I have'nt had time to deal with mine yet).
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Old 09-28-2003, 18:03   #8 (permalink)
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Re: Diff Whine

Quote:
Originally Posted by Beej
I forgot to mention in my last post, that, there are two pinion bearings - one rear, and one up by the yoke. I suspect that the front one would probably be the producing the whine (I have'nt had time to deal with mine yet).
Well i ended up changing the diff oil with the above castrol saf-xa
Diff whine is still there.

You can only hear it travelling over 110k/ph. If you travel 100k/ph its fine. The minute you increase speed by 10km whine appears,
Its got me stoked
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Old 09-28-2003, 19:25   #9 (permalink)
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Re: Diff Whine

Is the car manual or auto? If its an auto try knocking the gear box back to third. If noise dissappears then the problem is in the planetary gear set in the transmission. This is often mistaken for diff noise and the only way to fix it is to replace the gear set (or transmission).
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Old 09-28-2003, 21:01   #10 (permalink)
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Re: Diff Whine

Yeah mine whines at about 80kmh, although I think its Rollins fault cause its his diff. My old 3.08 never whined.
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