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Faulty Low Pressure fuel pump, causing Acceleration Fault
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Jakeboy
 


Member Since: 11 Dec 2012
Location: Glasgow
Posts: 97

Scotland 2013 Discovery 4 3.0 SDV6 XS Auto Orkney GreyDiscovery 4

Thanks All,

I will review the video tonight Robbie and I'll defo be doing some further tests at the pump before I finally condemn it. I understand your reasoning behind using the Amp Clamp and I did worry about this but reasoned that as the car was running, the pump must have been running also and not siezed or pulling a particularly high current - was a bit of a risk though Whistle If I was using the clamp style, I assume you would just run a jumper wire in place of the fuse and clamp around that? I couldn't quite see from your pics?

Mikey - I was hoping to do just the repair pump but I presume you are talking from experience and that the aftermarket ones are no good. Presumably, if I can source a genuine Walbro GSS 503 for reasonable money, then this would be ok.

Also I have seen the folowing one which looks like reasonable money for an Genunie LR part;

http://www.ebay.co.uk/itm/like/11160265482...amp;ff19=0

Can anyone confirm the Part No. (LRO 42717), is correct for my car MY06 VIN: 6A413XXX ? I'm not sure if the D3 one fits the D4 also, as it has in the listing?

Freebob - Think you need to go for a drive with the missus to experience this. Defo sounds like clutch issue to me also
  
Post #14377045th Mar 2015 2:44 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20732

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

That's a D3 pump for 10MY tank

From memory, I beilieve you need a WGS500110. Around £300 or so Thumbs Up
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Post #14377365th Mar 2015 3:46 pm
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Jakeboy wrote:
I will review the video tonight Robbie and I'll defo be doing some further tests at the pump before I finally condemn it. I understand your reasoning behind using the Amp Clamp and I did worry about this but reasoned that as the car was running, the pump must have been running also and not siezed or pulling a particularly high current - was a bit of a risk though Whistle If I was using the clamp style, I assume you would just run a jumper wire in place of the fuse and clamp around that? I couldn't quite see from your pics?


Jumper wires is one option and the book method is to release the BJB and clamp from beneath the fuse, so that is another. You can also use the test points on the back of the fuse and measure the mV across them and use Ohm's Law to deduce the current.

I use one of these fuse buddy style DMM adaptors and link the 2 cables with a female/female banana connector, so have the option of using it with a regular DMM or a clamp:



Thumbs Up
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

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Post #14377465th Mar 2015 4:05 pm
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Jakeboy
 


Member Since: 11 Dec 2012
Location: Glasgow
Posts: 97

Scotland 2013 Discovery 4 3.0 SDV6 XS Auto Orkney GreyDiscovery 4

Thanks Mike, I thought it was too good to be true! Big Cry Better water the money tree again Thumbs Up

Robbie - It all now becomes clear! Nifty bit of kit and a tad safer than my own " fuse buddy" Rolling with laughter
  
Post #14378735th Mar 2015 7:23 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20732

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

I fitted one, failed after 6 weeks

Customer of mine fitted one himself, lasted 3 weeks

And there was another, which I can't remember Embarassed
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Post #14378775th Mar 2015 7:26 pm
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932

United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Jakeboy wrote:
Robbie - It all now becomes clear! Nifty bit of kit and a tad safer than my own " fuse buddy" Rolling with laughter


They are only about £7 so cheap as well as nifty!

Thumbs Up
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

Diagnostics for:
Defender, FL2, D3, D4, Evoque, RRS & FFRR
A not-for-profit enterprise


 
 
Post #14378815th Mar 2015 7:37 pm
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Jakeboy
 


Member Since: 11 Dec 2012
Location: Glasgow
Posts: 97

Scotland 2013 Discovery 4 3.0 SDV6 XS Auto Orkney GreyDiscovery 4

Disco_Mikey wrote:
That's a D3 pump for 10MY tank

From memory, I beilieve you need a WGS500110. Around £300 or so Thumbs Up


Just had a thought Idea ( dangerous I know Shocked ), but I wonder if the pump in the one listed for the MY 10, is the same as the one in the earlier version? Given the prices, it would still be the cheapest option to get an OEM pump, if I could simply swap them over?

I've done a search and can't seem to find a diagram or parts list Question
  
Post #14379395th Mar 2015 8:50 pm
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Disco_Mikey
 


Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20732

Scotland 2005 Discovery 3 TDV6 HSE Auto Cairns BlueDiscovery 3

It's different. Have already compared them Neutral
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TDV8 Retrofit Build Thread 
 
Post #14379425th Mar 2015 8:54 pm
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Jakeboy
 


Member Since: 11 Dec 2012
Location: Glasgow
Posts: 97

Scotland 2013 Discovery 4 3.0 SDV6 XS Auto Orkney GreyDiscovery 4

I should have guessed I would not be the first to have thought about it Question Cheers again Thumbs Up
  
Post #14379535th Mar 2015 9:03 pm
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cyberboblouth
 


Member Since: 17 Mar 2015
Location: Perth
Posts: 12

Australia 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

Hi Jakeboy, please keep us updated. I am having what appears to be the exact same issue, I got just over 4 amps on the test.
  
Post #144396917th Mar 2015 1:59 am
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mark.hofert
 


Member Since: 03 Jul 2014
Location: waltham abbey
Posts: 34

United Kingdom 2005 Discovery 3 TDV6 HSE Lux Auto Zambezi SilverDiscovery 3

Guys, this post has possibly saved me a lot of heart ache.
I did the test and i am getting 4.21Amps on mine.
If this works, hopefully all my problems are cured.
Only question i have is how do i know if i have a fuel-fired aux heater?
  
Post #144570320th Mar 2015 3:51 pm
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cyberboblouth
 


Member Since: 17 Mar 2015
Location: Perth
Posts: 12

Australia 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

I just spoke with the garage and they couldn't comment further if the low pressure pump would give my symptoms without it being there in the garage.

I am just getting quotes to change the high pressure pump, using the later design D4 pump and new belt + tensioner. All in is approx. $3000 AUD

I hope they conclude it's the low pressure pump when checking but after lots of reading it's most likely the HPFP
  
Post #144693723rd Mar 2015 4:12 am
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mark.hofert
 


Member Since: 03 Jul 2014
Location: waltham abbey
Posts: 34

United Kingdom 2005 Discovery 3 TDV6 HSE Lux Auto Zambezi SilverDiscovery 3

Cyber, just as an update. I did the test and I also got 4.21amps. Ordered the full unit and spent the day fitting the new one. Driven it for 2 days now and this seems to of fixed my problems.
  
Post #144695123rd Mar 2015 8:52 am
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cyberboblouth
 


Member Since: 17 Mar 2015
Location: Perth
Posts: 12

Australia 2005 Discovery 3 TDV6 HSE Auto Unknown ColourDiscovery 3

Many thanks for the update, making me feel easier about my impending costs.

Did you have the same vehicle symptoms as the OP? Did you do another current test after fitting? And lastly, any links for the kit?

Thanks, again,

Bob.
  
Post #144697423rd Mar 2015 10:03 am
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mark.hofert
 


Member Since: 03 Jul 2014
Location: waltham abbey
Posts: 34

United Kingdom 2005 Discovery 3 TDV6 HSE Lux Auto Zambezi SilverDiscovery 3

Bob,almost identical. Just that mine would cut out completely.
I didn't recheck the rest, took it for a long drive and no more symptoms.
Got the part from http://www.brit-car.co.uk/
spoke to Craig wood and he went out his way to get the part delivered the next day...
  
Post #144698323rd Mar 2015 10:19 am
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