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Tapping Sound (not the usual one)
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Ceekay
 


Member Since: 17 May 2009
Location: Bury
Posts: 2057

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Waitomo GreyDiscovery 4
Tapping Sound (not the usual one)

Seem to be getting an intermittent tapping sound from what sounds like behind the front grille. thinking it may be a compressor (prob air con). Can only be described as hitting the side of a baked bean can with a spoon, almost hollow sound. Not always there and have tried switching off the HVAC whilst its occurring but not conclusive yet.
Anyone any similar experience?
(its not the usual hydraulic tappet sound that I had with the D3)
 D4 HSE Lux MY16 Club Waitomo
D3 HSE MY06 missing her still… 
 
Post #20732713rd Aug 2019 12:03 pm
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grzesiul
 


Member Since: 11 May 2008
Location: UK
Posts: 6266

Poland 2016 Discovery 4 3.0 SDV6 SE Auto Loire BlueDiscovery 4

you can easy hear it when cleaning AC since cleaning process requires coldest setting and fastest fan speed the heat exchange is massive hence metal expands a lot and you can hear that knocking noise for a while
do you cool yous cabin with AC before ventilating the car by opening windows for a few minutes?
  
Post #20733033rd Aug 2019 2:18 pm
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v8bobber
 


Member Since: 20 Sep 2010
Location: pembrokeshire, wales
Posts: 91

Wales 2015 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4
Re: Tapping Sound (not the usual one)

Ceekay wrote:
Seem to be getting an intermittent tapping sound from what sounds like behind the front grille. thinking it may be a compressor (prob air con). Can only be described as hitting the side of a baked bean can with a spoon, almost hollow sound. Not always there and have tried switching off the HVAC whilst its occurring but not conclusive yet.
Anyone any similar experience?
(its not the usual hydraulic tappet sound that I had with the D3)


How regular is the noise, as in once a second or once every few seconds?
  
Post #20733063rd Aug 2019 2:25 pm
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sasdiscos
 


Member Since: 22 Feb 2013
Location: Northants
Posts: 886

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Bali BlueDiscovery 4



Any thing like this?
 You remind me of a younger me, not much younger mind...perhaps even a little older!  
Post #20733253rd Aug 2019 4:15 pm
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v8bobber
 


Member Since: 20 Sep 2010
Location: pembrokeshire, wales
Posts: 91

Wales 2015 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Well that’s what’s mine sounds like. Maybe mines less pronounced than that.

What is it
  
Post #20733473rd Aug 2019 5:28 pm
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sasdiscos
 


Member Since: 22 Feb 2013
Location: Northants
Posts: 886

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Bali BlueDiscovery 4

Viscus fan clutch.

Steve
 You remind me of a younger me, not much younger mind...perhaps even a little older!  
Post #20733643rd Aug 2019 6:41 pm
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v8bobber
 


Member Since: 20 Sep 2010
Location: pembrokeshire, wales
Posts: 91

Wales 2015 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

That would explain a lot actually. When I piug my nanocom in i get an error message relating to the fan.

Did you change yours or live with it?
  
Post #20733883rd Aug 2019 7:54 pm
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sasdiscos
 


Member Since: 22 Feb 2013
Location: Northants
Posts: 886

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Bali BlueDiscovery 4

It works so I have left it for now. I’ll worry when it causes an issue. Just had a week in the new forest in the heat and all was well so not concerned.

Steve
 You remind me of a younger me, not much younger mind...perhaps even a little older!  
Post #20734113rd Aug 2019 9:31 pm
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v8bobber
 


Member Since: 20 Sep 2010
Location: pembrokeshire, wales
Posts: 91

Wales 2015 Discovery 4 3.0 TDV6 HSE Auto Santorini BlackDiscovery 4

Are you sure it’s definitely that
  
Post #20734193rd Aug 2019 9:50 pm
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Ceekay
 


Member Since: 17 May 2009
Location: Bury
Posts: 2057

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Waitomo GreyDiscovery 4

Thanks for the replies,

Yes its pretty much the same noise as the video and sometimes it does it and sometimes not.

So not the compressor then but the viscous fan clutch?

Easy fix? Expensive Part?

Can’t hear the crank failing with this noise going on Shocked Laughing
 D4 HSE Lux MY16 Club Waitomo
D3 HSE MY06 missing her still… 
 
Post #20735104th Aug 2019 12:11 pm
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marsie
 


Member Since: 28 Feb 2010
Location: Sheffieldish
Posts: 1804

England 2013 Discovery 4 3.0 SDV6 XS Auto Firenze RedDiscovery 4

Had the same on mine. Turned out to be a frayed auxiliary belt. The stray strand was hitting against various components on the way round. New belt cured it Thumbs Up
 Previous Discos
1989 200tdi 3dr
1994 300tdi ES
1995 3.9 ES (x3)
2000 4.0 adventurer
2001 4.0 ES
2005 D3 HSE (zambesi silver)
2007 D3 SE (Lugano teal)
2011 D4 XS (Baltic Blue)
2008 D3 HSE PREMIUM (buckingham blue)
2009 D4 XS (Nara bronze)
2006 D3 Metropolis (Java Black)
2012my D4 HSE (indus silver)
Current 2013 D4 XS (Firenze red) 
 
Post #20736204th Aug 2019 8:17 pm
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robsta
 


Member Since: 19 Mar 2011
Location: La Lucia, Durban
Posts: 52

South Africa 2011 Discovery 4 5.0 V8 HSE Auto Alaska WhiteDiscovery 4

Fan Clutch...Very common and mine has been doing it for about 4 years.... Laughing Okes at Landy locally say not worth the fix as they have not seen one fail yet.....and we live in a very hot tropical climate. Noise will only be present at idle.

Just a thought....
 Previously Freelander II
Previously '08 Disco 3 TDV6 SE
Previously '10 Disco4 TDV / SDV6 HSE
Now: '12 Freelander II SD4 HSE -
Now '11 Disco4 V8 HSE 
 
Post #20736995th Aug 2019 8:12 am
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