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Lack of Power Below 2000 rpm
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studiscoS
 


Member Since: 17 Oct 2006
Location: Cumbria
Posts: 21

United Kingdom 2005 Discovery 3 TDV6 S Manual Zambezi SilverDiscovery 3
Lack of Power Below 2000 rpm

Recently had lack of power - flat below 2000rpm. Just happend half way through journey. Power is flat until 2000 rpm then goes normally. Sympoms like air filter blocked. Checked this and is ok. No fault shown on dash. Big Cry

Is is possible that the airflow sensor in air intake is gone without showing a fault on the dash. Next trying disconnecting battery for a few seconds to see if it reboots without fault. Sheep

Grateful for an advice.  
Post #2694307th Mar 2008 10:06 pm
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90BHP
 


Member Since: 18 Oct 2006
Location: Half way along the road on the right
Posts: 3706

United Kingdom 2009 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Maybe the EGR valve/s

Just be careful that the EGR valves don't go on you giving total loss of power at an inconvenient moment. Mine failed infront of a fast approaching lorry.

May be in no way related, but I had no warning at all until after the failure. (Enging off and on again) when rather helpfully the engine management light woke up and joined the show . . . . "To finish first, one first has to finish ...."  
Post #2694377th Mar 2008 10:11 pm
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lr1
 


Member Since: 09 Nov 2005
Location: Crash and Burn
Posts: 156

United Kingdom 

Same symptoms as mine, now waiting for EGR valve to be fitted next week. At least there now seems to be a stock of EGR valves available to dealers.  
Post #2694677th Mar 2008 11:06 pm
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studiscoS
 


Member Since: 17 Oct 2006
Location: Cumbria
Posts: 21

United Kingdom 2005 Discovery 3 TDV6 S Manual Zambezi SilverDiscovery 3

nyone know where the EGR values are and what they look like. On the 300 series its on near the turbo. Can't find it on this one. Waiting for a Haynes manual to come out! Embarassed  
Post #2697518th Mar 2008 8:05 pm
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90BHP
 


Member Since: 18 Oct 2006
Location: Half way along the road on the right
Posts: 3706

United Kingdom 2009 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

Not a clue but glad they are available - I waited 5 weeks. But mine I couldn't drive mine as there was No power at all.

RR Vogue for 5 weeks Thumbs Up "To finish first, one first has to finish ...."  
Post #2697638th Mar 2008 8:25 pm
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studiscoS
 


Member Since: 17 Oct 2006
Location: Cumbria
Posts: 21

United Kingdom 2005 Discovery 3 TDV6 S Manual Zambezi SilverDiscovery 3

Anyone know how to test these. Is there a simple resistance test I can do by disconnecting the ERG valve? I'm assuming as no fault is reported on the dash, then its not reported on the engine diagnostics computer?  
Post #27049810th Mar 2008 5:42 pm
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