AWD Transmission: - Transmission Whine - Page 2

mat123 · May 18th, 2011, 12:50

Quote:

Originally Posted by 400-ascona

Mine was speed specific (around 45mph, and there was another point higher up (conveniently forgot what speed.....). Not sure it changed between auto and manual tho. It did move speed wise as time went by. However the bearings felt smooth with no play. You could also feel it through the floor when you hit the resonant speeds.

Rob.

I cant feel anything throught the floor, just hear slight whining noise.

GJB · May 18th, 2011, 17:22

Sounds very much like a wheel bearing

mat123 · May 18th, 2011, 18:27

Quote:

Originally Posted by GJB

Sounds very much like a wheel bearing

That was my first thoughts, but that would not explain changing to manual mode at the same speed and the noise dissappearing, drop it back into auto, noise comes back, if it were a wheel bearing the noise would be constant, surely?

Matt

timh30 · May 19th, 2011, 01:51

Matt - It certainly doesn't sound like a wheel bearing issue, if by putting in Manual Mode the sound disappears (obviously sounds more like gearbox issue). It's not something I've tried on my wifes car, so will try that to confirm.

owenfackrell · May 19th, 2011, 07:51

I thought i had a bearing issue on mine but when i got the tyres changed and got rid of the cheap ones put on when i bought the car the noise went.
Mine also disapeared in manual mode but i think this was more to do with the gearbox locking up and the engine noise remaining.

timh30 · May 23rd, 2011, 10:18

Got to drive the wifes XC90 again this weekend and can confirm I still get the whining sound whether in Auto or Manual gearbox mode.

RoyMacDonald · May 24th, 2011, 12:16

My rear nearside did it all the time. My front offside only did it while turning right. (sometimes) I found it very difficult to identify where the noise was coming from each time. ( and so did the garage) A new bearing fixed each time.

andymuggwump · May 27th, 2011, 22:46

Mine is exactly the same, I have a gearbox whine and a rear axle whine that comes in at 35 - 45mph, axle whine dissapears at around 45 but gearbox whine still there until about 55mph. I think it's probably just wear and tear. I'm going to try having the gearbox softwear updated and I have already changed the gearbox and diff/ haldex fluids.
My only other thought is whether worn drive shafts make a noise??? Never had to deal with a worn drive shaft so wouldn't know.
My rear axle noise does almost dissapear when the AWD is functioning correctly, which it isn't at the moment due to the sensor in the DEM failing.

rallycar · Jun 11th, 2011, 10:03

Was experiencing a whine from the transmission but wasn't sure if it was a bearing or other. Turns out it was transmission as it failed last night. Awaiting espouse from dealership. 104k.

GJB · Jun 11th, 2011, 10:20

Quote:

Originally Posted by timh30

Got to drive the wifes XC90 again this weekend and can confirm I still get the whining sound whether in Auto or Manual gearbox mode.

Did you ever find out what was causing the problem.

May 19th, 2011, 01:51	#14
timh30 Senior Member Last Online: Jun 9th, 2022 17:33 Join Date: Jun 2006 Location: Kent	Matt - It certainly doesn't sound like a wheel bearing issue, if by putting in Manual Mode the sound disappears (obviously sounds more like gearbox issue). It's not something I've tried on my wifes car, so will try that to confirm. __________________ Me: 2001 V70 2.4 SE Wife: 2004 XC90 D5 SE

May 23rd, 2011, 10:18	#16
timh30 Senior Member Last Online: Jun 9th, 2022 17:33 Join Date: Jun 2006 Location: Kent	Got to drive the wifes XC90 again this weekend and can confirm I still get the whining sound whether in Auto or Manual gearbox mode. __________________ Me: 2001 V70 2.4 SE Wife: 2004 XC90 D5 SE

May 24th, 2011, 12:16	#17
RoyMacDonald VOC Member Last Online: Feb 1st, 2023 11:27 Join Date: May 2007 Location: Rye, East Sussex View Photos By: RoyMacDonald	My rear nearside did it all the time. My front offside only did it while turning right. (sometimes) I found it very difficult to identify where the noise was coming from each time. ( and so did the garage) A new bearing fixed each time. __________________ 1984 245 SE 1986 345 SE Auto 1991 940 TD Auto 2003 XC90 D5 SE AWD Geartronic2002 V70 D5 SE Auto 2014 V40 D2 SE Tiptronic Cross Country 2017 V40 D2 Cross Country Geartronic Pro 2015 XC60 D5 Polestar SE Lux Nav AWD Geartronic

May 18th, 2011, 17:22	#12
GJB Premier Member Last Online: Apr 22nd, 2024 15:54 Join Date: Dec 2004 Location: Cromer Norfolk	Sounds very much like a wheel bearing

May 19th, 2011, 07:51	#15
owenfackrell Premier Member Last Online: Feb 4th, 2024 19:04 Join Date: Dec 2009 Location: southampton	I thought i had a bearing issue on mine but when i got the tyres changed and got rid of the cheap ones put on when i bought the car the noise went. Mine also disapeared in manual mode but i think this was more to do with the gearbox locking up and the engine noise remaining.

May 27th, 2011, 22:46	#18
andymuggwump Junior Member Last Online: Apr 21st, 2012 10:31 Join Date: Apr 2010 Location: nowhere fast	Mine is exactly the same, I have a gearbox whine and a rear axle whine that comes in at 35 - 45mph, axle whine dissapears at around 45 but gearbox whine still there until about 55mph. I think it's probably just wear and tear. I'm going to try having the gearbox softwear updated and I have already changed the gearbox and diff/ haldex fluids. My only other thought is whether worn drive shafts make a noise??? Never had to deal with a worn drive shaft so wouldn't know. My rear axle noise does almost dissapear when the AWD is functioning correctly, which it isn't at the moment due to the sensor in the DEM failing.

Jun 11th, 2011, 10:03	#19
rallycar New Member Last Online: Jun 11th, 2011 10:10 Join Date: Jan 2009 Location: Solihull	Was experiencing a whine from the transmission but wasn't sure if it was a bearing or other. Turns out it was transmission as it failed last night. Awaiting espouse from dealership. 104k.

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