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Engine System Fault
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Member Since: 13 Apr 2007
Location: South Midlands
Posts: 185

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Santorini BlackDiscovery 4
Engine System Fault

Hi all - hope you're keeping safe.

I've done some searches on this and not drawn any particular conclusions, so thought I'd seek the wisdom of the forum with my specific problem.

2006 TDV6, starship mileage (although not as high as some on here - wow!).

Drives perfectly most of the time and then very infrequently, engine system fault appears on the display accompanied by loss of power. Occurs when the car is working hard and usually at higher speeds - e.g. overtaking. I pop it into neutral, take my foot off the gas, allow the revs to drop to idle, rev it, back into drive and on my way, no further problem. No fault codes that I can attribute (EGR gremlin in the faultcode read-back along with an injector that reports a fault but clears); using Hawkeye to read faults.

Thoughts? Sometimes doesn't do it all. Instantly picks back up on the revs after allowing it to drop to idle.

Yours confused.

Chris
  
Post #213855216th Apr 2020 11:00 am
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Ambit
 


Member Since: 12 Dec 2017
Location: Wales UK
Posts: 236

Wales 2015 Discovery 4 3.0 SDV6 Commercial Auto Vienna GreenDiscovery 4

First thing to do is change the fuel filter for a OEM or Delphi one the Delphi is what LR use plenty on ebay around £20 posted. This may clear the fault I had this fault for a while and finally did the fuel filter myself again after a garage did not fit an OEM one a few months ago, they fitted a new filter but wasn't Delphi. Fault fixed.
  
Post #213856816th Apr 2020 11:47 am
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Flack
 


Member Since: 06 Sep 2006
Location: Preston Lancashire
Posts: 6313

England 2007 Discovery 3 TDV6 XS Auto Stornoway GreyDiscovery 3

As above but also check your low fuel pressure pump reading at the engine test point, it could be your low pressure fuel pump is dying.

Flack Thumbs Up
  
Post #213863516th Apr 2020 2:51 pm
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Member Since: 13 Apr 2007
Location: South Midlands
Posts: 185

United Kingdom 2016 Discovery 4 3.0 SDV6 HSE Lux Auto Santorini BlackDiscovery 4

Thanks both - will give it a shot. Flack not 100% certain I know what you mean about engine test point? Is it part of the live data feed I can read on Hawkeye?

I thought you might say the dreaded T word i.e. turbo!!

Best

Chris
  
Post #213864916th Apr 2020 3:45 pm
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PROFSR G
 


Member Since: 06 Mar 2017
Location: Lost
Posts: 5069

Ukraine 2009 Discovery 3 TDV6 Commercial XS Auto Stornoway GreyDiscovery 3

He's referring to the schrader valve used for bleed and pressure test of the LPFP.
Have a look here Thumbs Up

https://www.disco3.co.uk/forum/robbies-gui...ader+valve
 yµ (idµ - eAµ) ψ=mψ

 
 
Post #213865116th Apr 2020 3:49 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

Lot of carp fuel about at the minute.
Trucks needing filters changing every 8 weeks.
  
Post #213868416th Apr 2020 5:21 pm
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