V6 Transmission hum

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Our Bonnie
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V6 Transmission hum

Post by Our Bonnie » Sun Dec 04, 2016 9:26 pm

https://youtu.be/vTCO2dhfdJ4

Just wondering if any one has come across this, This hum only happens when in stop/start traffic for a while, no slip, shudder or judder and can accelerate with no problems, and goes if you ease off the throttle a tiny bit. You can hear it on the youtube clip, may have to turn the volume up a fair bit.

any thoughts much appreciated.

cheers
Bongolia
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Re: V6 Transmission hum

Post by Bongolia » Sun Dec 04, 2016 11:55 pm

Difficult to say from the video but I think I am getting it.
Is it coming from the front, box area, or more to the rear?
If I were to hazard a guess... diff.
Best you get it to a garage let them put an ear to it.
Gasy
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Re: V6 Transmission hum

Post by Gasy » Mon Dec 05, 2016 5:41 pm

Have you checked all your levels and replaced oils
Gear box oils ,diff oils etc
Might be a good place to start change all your oils and see
Or brakes and bearings next
The park brake is different pads from the hand brake I think
LSD DIFFS USE DIFFERENT OIL I THINK IF YOU HAVE A LSD
Gas safe heating engineer / plumber if you need any advice just shout.
Our Bonnie
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Re: V6 Transmission hum

Post by Our Bonnie » Mon Dec 05, 2016 6:33 pm

Many thanks for your replies, and I was going to include the following info, such a numpty!

Transmission has had its fluid replaced, sump off and sludge removed.
Rear diff checked and levels very good.

Hard to say where the hum is coming from, sounds a bit like the transmission.


cheers

Kevin
Bongolia
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Re: V6 Transmission hum

Post by Bongolia » Tue Dec 06, 2016 10:32 am

Our Bonnie wrote:Many thanks for your replies, and I was going to include the following info, such a numpty!

Transmission has had its fluid replaced, sump off and sludge removed.
Rear diff checked and levels very good.

Hard to say where the hum is coming from, sounds a bit like the transmission.


cheers

Kevin
In that case I think it best if you get it to a decent mechanic/ transmission guy to put their ear on it.
May be nothing to worry on but a stitch in time etc.
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Alacrity
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Re: V6 Transmission hum

Post by Alacrity » Tue Dec 20, 2016 6:04 pm

Blimey I wish my stop/start traffic did 55mph!!!

Classic diff noise I'm afraid. They can go for years like this if you can live with it & keep topped up.
35+ years working with autogearboxes - all day every day......for my sins
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mikeonb4c
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Re: V6 Transmission hum

Post by mikeonb4c » Tue Dec 20, 2016 6:07 pm

Alacrity wrote:Blimey I wish my stop/start traffic did 55mph!!!

Classic diff noise I'm afraid. They can go for years like this if you can live with it & keep topped up.
Merry Christmas Geoff and all the best for 2017. Good to see you popping up on here occasionally.
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Alacrity
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Re: V6 Transmission hum

Post by Alacrity » Tue Dec 20, 2016 6:19 pm

You too Mike, you know why I don't comment often.

Geoff
35+ years working with autogearboxes - all day every day......for my sins
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mikeonb4c
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Re: V6 Transmission hum

Post by mikeonb4c » Tue Dec 20, 2016 7:02 pm

Alacrity wrote:You too Mike, you know why I don't comment often.

Geoff
:-# :lol:
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