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DISCO3.CO.UK > Faults & Fixes (D4)

Discovery 4 2.7 TDV6 Engine Whistle Noise

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Jamesdean5000

Member Since: 07 Oct 2020
Location: Southport
Posts: 2

2010 Discovery 4 TDV6 Commercial Auto Fuji White

Discovery 4 2.7 TDV6 Engine Whistle Noise

Hi all.
I'm new to the forum and would really appreciate if anyone can help diagnose a strange whistle I have coming from the drivers side of the engine bay [RHD].

My car is a 2010 2.7 TDV6 Discovery 4 commercial [Auto]

It doesn't occur on tick over - mainly when backing off or cruising along under gentle load.
It does occasionally happen under normal acceleration but not from standing start, only when pottering along.

If I floor it, it can change to a brief screech.
Originally I thought it was a damaged crossover pipe so I had this changed but it hasn't cured it.
[I did turn out to be knackered anyway so it wasn't a complete waste of cash]

I've also had the turbo checked and it seems to be fine too.

I've posted a video on youtube to try and capture the noise as best as I can.

If anyone can offer an insight into what the problem might be, it would be very much appreciated.

One other point is that it doesn't affect performance.

Many thanks
James

7th Oct 2020 5:15 pm

disco4ever

Member Since: 23 Dec 2013
Location: under the car
Posts: 402

2012 Discovery 4 3.0 SDV6 HSE Lux Auto Santorini Black

To me it sounds like a bearing issue. From alternator to whatever is driven by the cambelt.

Difficult To judge at distance. Achim

own garage certified LR tech

Disco 2 TD5 MY 2001 - gone but still driven by another owner
Defender 110 TD5 driving me bananas with all faults
Disco 3 TDV 6 HSE MY 2005 gone @280.000 km
Disco 4 SDV 6 HSE MY 2012

7th Oct 2020 7:34 pm

M3DPO

Member Since: 22 Sep 2010
Location: Notts.
Posts: 8072

2014 Discovery 4 3.0 SDV6 HSE Lux Auto Corris Grey

Cam belt tension pulley? It can when others can't,
It will when others won't,
It goes where others don't.

7th Oct 2020 8:09 pm

Jamesdean5000

Member Since: 07 Oct 2020
Location: Southport
Posts: 2

Both sound like good shouts.

Thanks guys.
I’ll look into that and keep you posted.

8th Oct 2020 6:04 pm

DSL
Keeper of the wheelie bin

Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72775

M3DPO wrote:
Cam belt tension pulley?

I’ve had both pulley failure and bearing failure, sounds more like the former than the latter to my non expert/non techie ears.

Though it could be neither.

8th Oct 2020 6:06 pm

Tankytom

Member Since: 29 Oct 2020
Location: Buckingham
Posts: 2

Re: Discovery 4 2.7 TDV6 Engine Whistle Noise

Did you work out what it was in the end?
Mines making the exact same noise

Jamesdean5000 wrote:
Hi all.
I'm new to the forum and would really appreciate if anyone can help diagnose a strange whistle I have coming from the drivers side of the engine bay [RHD].

My car is a 2010 2.7 TDV6 Discovery 4 commercial [Auto]

It doesn't occur on tick over - mainly when backing off or cruising along under gentle load.
It does occasionally happen under normal acceleration but not from standing start, only when pottering along.

If I floor it, it can change to a brief screech.
Originally I thought it was a damaged crossover pipe so I had this changed but it hasn't cured it.
[I did turn out to be knackered anyway so it wasn't a complete waste of cash]

I've also had the turbo checked and it seems to be fine too.

I've posted a video on youtube to try and capture the noise as best as I can.

If anyone can offer an insight into what the problem might be, it would be very much appreciated.

One other point is that it doesn't affect performance.

Many thanks
James

28th Apr 2021 12:24 pm

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