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Turbo knocking???
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Griffy
 


Member Since: 25 Apr 2018
Location: Plymouth
Posts: 3

United Kingdom 
Turbo knocking???

Hi guys, advice please ......

2007 D3, has just started to make a knocking noise on firm acceleration. It appears that the knocking is only when the turbo would be active, on revving and gentle acceleration the engine is quiet and smooth. I haven't noticed any loss of power and there is no smoke etc......

Am i in trouble here?? is it likely to be a hose or something (fingers crossed) ?????

Thanks in advance  
Post #194049428th Apr 2018 7:39 pm
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200TDi
 


Member Since: 30 Dec 2012
Location: Annan/Portsmouth
Posts: 282

United Kingdom 2007 Discovery 3 TDV6 XS Auto Java BlackDiscovery 3

the turbo contains no parts with enough weight to cause much of a knock, how loud and can you feel it as well? Pete

1965 S2a with Galv Marslands Chassis - Sold (BIG mistake)
1993 200TDi GS Green 5 Seat Manual - Broken
1993 200TDi GS Grey 7 Seat manual - Sold To Defender Owner to Use Engine
1999 TD5 GS Blenheim Silver 5 Seat Manual - Broken
1999 TD5 GS Oxford Blue 7 Seat Auto - Sold
1999 TD5 ES Epsom Green 6 Seat Auto - Sold
2007 D3 2.7 TDV6 XS Java Black 7 Seat Auto

1999 Swift Classic Coronette
2019 BMW X1 AWD Auto - SWMBO's Car

IID Tool BT  
Post #194049628th Apr 2018 7:44 pm
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Griffy
 


Member Since: 25 Apr 2018
Location: Plymouth
Posts: 3

United Kingdom 

No I cant feel anything through the vehicle or steering. It doesn't sound metallic or anything. The best think I can liken it to is an 'air' noise like you get from helicopter rotor blades, like a:

dough-dough-dough-dough

but its only on what i imagine to be turbo use?  
Post #194051128th Apr 2018 8:12 pm
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bournetransport
 


Member Since: 17 Apr 2016
Location: Bournemouth
Posts: 7

United Kingdom 2010 Discovery 4 TDV6 Commercial Auto Unknown ColourDiscovery 4

Check boost pressure on live data using diagnostic tool.
Over boost will cause an engine knock (diesel knock / pink).

Check oil pressure, not enough will cause a big end knock under load.

Hope this helps.  
Post #194051528th Apr 2018 8:23 pm
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Griffy
 


Member Since: 25 Apr 2018
Location: Plymouth
Posts: 3

United Kingdom 

Gives me somewhere to start, thankyou Thumbs Up  
Post #194052628th Apr 2018 9:19 pm
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