Miserableolgit wrote:

That's just the air sliding over all the polish and valeting products you've got on yours, just turn the radio up and all will be well

 John

http://www.hampshire4x4response.co.uk

2011 Tdci 110 CSW XS

Scallops wrote:

I'm very glad to have come across this thread - I suspect mine does this too. I hear this subtle noise at about 90- 100kmh in 6th (it does happen in other gears but engine noise at same speed drowns it out somewhat) when on power - coast, it goes away. LR dealer here has put the "ears" on everything and can't work it out.

I'll keep watching this thread and if I find out what is going on I'll report back.

Sounds like mine probably does the same. Not the loud turbo whistle I have to fix but a subtle mosquito/dog whistle sound mostly at around 140-145kmh (i.e. 90+ mph) but also slower sometimes. Always with power/coast exactly at you say.
I guess it's done it since new but I only noticed it when I installed a hardware speed limiter. Initially, I was sure it was coming from the limiter and gave the company all kinds of grief until I took it out
To me it sounds more electronic than mechanical and seems to come more from the inside than outside. My old Powerbook made the same sound when on the internet.
10,000km later and it hasn't changed. I just turn the radio on and ignore it now  Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...

Zagato wrote:

I think you have a different noise ZeDefender! What I have is a transmission sounding whine. I am house bound at the moment with a bad back so had to cancel the dealership booking but will also keep this thread updated Scallops. I also don't think they will find anything until it goes bang which could be thousands of miles away. I just want to bring their attention to it so I have a better case when it gets really bad of breaks

Sorry - I was replying more to Scallops - I didn't mean to hijack your thread
Get well soon  Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...

Tompoole wrote:

Whine on over run tends to be diffs, whine on load in every gear tbox
Bearing, whine in specific gear - gear box bearing.
Trouble is with you puma guys , your engines too quiet and your
Desperate to find something wrong
It's a work truck , use it abuse it , if whines turn the radio up :-0
Think most of the whines that can be heard from the new puma defenders
Comes from the drivers seat Pmsl!!

Great post. And I think you are spot on with the Puma being a culprit in it being relatively silent, and that thought is always right behind the one that thinks something may be wrong. Doesn't mean it may not be worthwhile discussing with others to satisfy oneself though.

Tompoole wrote:

Whine on over run tends to be diffs, whine on load in every gear tbox

Quote:

The Puma's have 2 problems, no1 the chrome plating on the crown wheel are not of very hi quality. This causing the pinion and crown not to mesh together very well and you will find yourself stuck in a spar's parking lot with your crown wheel lying on the ground. Only solution is to insist on a diff made in england (they are of superior quality) and not the one made in the states (This is the diffs fitted to all pumas in SA). The workshop manager at our local dealership told us this.

 --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO
Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ