Diff Whine - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

MKII240T · 08-06-2003, 20:26

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

WBT56 · 08-07-2003, 04:38

Probably a pinion bearing.

302_supra · 08-08-2003, 18:08

my dads ef fairmont ghia does the same thing...its more a growl/ moan than a whine..any idea what that'd be?

snavy · 08-10-2003, 07:16

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.

Beej · 09-18-2003, 05:01

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).

TopGhia · 09-18-2003, 13:10

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

Beej · 09-26-2003, 02:52

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).

MKII240T · 09-28-2003, 18:03

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

Moses · 09-28-2003, 19:25

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).

YOOT · 09-28-2003, 21:01

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