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

Starts for 5 seconds then dies
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DevonWarrior
 


Member Since: 11 Jun 2021
Location: Devon
Posts: 11

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Auto Stornoway GreyDiscovery 4
Starts for 5 seconds then dies

Had to get my 2015 D4 recovered by the RAC on Friday evening. Started getting loss of power, revs went up to 3-4k but no acceleration and 1 min later very lumpy and then died completely, fortunately with a big layby just infront of me. Now takes about 5 seconds turning over before firing up. Sits at tickover for about 4 seconds then dies.

Low Power Fuel Pump pulling approx 6.5A. Fuel coming out of bleed point above engine.
Fuel Rail Pressure approx 5500- 7300 psi.

No diagnostic codes (using Veepeak ODBCheck BLE) except for a generic suspension fault I've been having the last month.

Would like to fix it myself but going to have to call the local dealer in Exeter tomorrow if not.

Have the IID Tool on order as I'm sure I should be getting more codes than this.

Any ideas?  
Post #224339725th Jul 2021 3:01 pm
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jenseneverest
 


Member Since: 12 Jun 2017
Location: somewhere
Posts: 769

United Kingdom 2005 Discovery 3 TDV6 Base 7 Seat Manual Zambezi SilverDiscovery 3

need to check your injector trim levels
This is worth a read https://www.disco3.co.uk/forum/fuel-pressure-solved-129790.html  
Post #224347725th Jul 2021 9:46 pm
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DevonWarrior
 


Member Since: 11 Jun 2021
Location: Devon
Posts: 11

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Auto Stornoway GreyDiscovery 4

Thanks - Will read it again today to ensure everything I read last night has sunk in Smile  
Post #224353526th Jul 2021 10:31 am
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robrs
 


Member Since: 30 Jan 2019
Location: Frinton On Sea,Essex
Posts: 36

England 2014 Discovery 4 3.0 SDV6 XS Auto Baltic BlueDiscovery 4

Hi,what was the fix of your one,mine is doing exactly the same  
Post #231587222nd Nov 2022 1:02 pm
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DevonWarrior
 


Member Since: 11 Jun 2021
Location: Devon
Posts: 11

United Kingdom 2015 Discovery 4 3.0 SDV6 HSE Auto Stornoway GreyDiscovery 4

High Pressure Fuel Pump failed. Got new one fitted.

No codes to indicate anything was faulty  
Post #231587322nd Nov 2022 1:22 pm
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robrs
 


Member Since: 30 Jan 2019
Location: Frinton On Sea,Essex
Posts: 36

England 2014 Discovery 4 3.0 SDV6 XS Auto Baltic BlueDiscovery 4

Mine ended up being a blocked dpf. Don’t know why I had no codes?and why was it not regenerating  
Post #231624425th Nov 2022 8:21 am
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robrs
 


Member Since: 30 Jan 2019
Location: Frinton On Sea,Essex
Posts: 36

England 2014 Discovery 4 3.0 SDV6 XS Auto Baltic BlueDiscovery 4

Hi,my problem was maf sensor failed and blocked the dpf  
Post #231883615th Dec 2022 1:36 pm
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