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Waiting for AA...
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Fitzy73
 


Member Since: 09 Feb 2014
Location: Truro
Posts: 2407

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Causeway GreyDiscovery 4
Waiting for AA...

Pressed starter button, dashboard lights come on, but engine will not turn on and dash lights go out. Earlier the fuel gauge disappeared for a couple of miles with a 3/4 tank full.

Any ideas?
 Andy

 
 
Post #144626021st Mar 2015 6:37 pm
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RAW
 


Member Since: 14 Oct 2008
Location: Devon
Posts: 936

England 2015 Discovery 4 3.0 SDV6 Commercial XS Auto Indus SilverDiscovery 4

Engine earth strap missing,
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MY11 D4 Silver Commercial(Gone)
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Post #144626221st Mar 2015 6:49 pm
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Fitzy73
 


Member Since: 09 Feb 2014
Location: Truro
Posts: 2407

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Causeway GreyDiscovery 4

Thank you to the good Mrs Fitzy for posting this in my hours of need, as no signal to do it myself. Thank you to RAW too for the help.

The very nice man with the yellow van diagnosed "vacuum exhausted in the servo", so basically putting my normal pressure on the brake pedal wasn't sufficient for the car to know it was being pressed, so wouldn't start.

Battery and alternator checked and ok, so that was nice to know.
 Andy

 
 
Post #144635121st Mar 2015 9:19 pm
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Robbie
 


Member Since: 05 Feb 2006
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Vacuum was what???

Confused
 Land Rover - Turning Drivers into Mechanics Since 1948

Battery & Quiescent Current Drain Testing

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Post #144637121st Mar 2015 10:05 pm
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Fitzy73
 


Member Since: 09 Feb 2014
Location: Truro
Posts: 2407

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Causeway GreyDiscovery 4

Sadly not being in the least bit technical (so he could have been telling me anything), I have no idea, but it seems there was not enough pressure, so the brake pedal needed much more force to let the car register it was being pressed to allow it to start.
 Andy

 
 
Post #144637521st Mar 2015 10:10 pm
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euangibson
 


Member Since: 24 Dec 2010
Location: Borders
Posts: 11027

Scotland 2012 Discovery 4 3.0 SDV6 HSE Auto Firenze RedDiscovery 4

Sounds similar ?
http://www.disco4.com/forum/topic101603.ht...e+%2Bpedal
 "Better to remain silent and be thought a fool,than to speak out and remove all doubt" ?.....what rubbish...

Locking rear E-diff
RLD spare wheel protector & sump guard
Extended roof rails
Series 111 mudflaps
Black side tubes,grill and vents
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Hids4u interior lights

D4 Firenze my2012 HSE
D3 Java 2005 SE manual (sold,sadly,thanks for the memories)
1966 '88 Series 2a....still starts in the morning better than I do... 
 
Post #144637721st Mar 2015 10:16 pm
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Robbie
 


Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
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United Kingdom 2013 Discovery 4 3.0 SDV6 HSE Auto Baltic BlueDiscovery 4

Surely if you tried to start without the brake switch registering you would just get the warning on the dash telling you to press the brake for starting and not for the dash lights to go out?

I'm scratching my head a little and I wonder if the similarity to the issue on early D4s has thrown them - did they offer an explanation for the fuel gauge too?
 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 #144637821st Mar 2015 10:20 pm
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RAW
 


Member Since: 14 Oct 2008
Location: Devon
Posts: 936

England 2015 Discovery 4 3.0 SDV6 Commercial XS Auto Indus SilverDiscovery 4

I had the same issues on my old D4 last month and the LRA Man located the engine earth cable under the drivers side wing had broken of on the crimp lug.
Symptoms were very similar everything showed okay and when pressing brake pedal the instruction on the dash went out but engine would not turn over!
To start with they thought the starter had gone, I pointed out there was no relay click or solinoid click and if you tried with the lights on they did not dim, a quick link of heavy duty cable from negative on battery to engine casing and away she went. Thumbs Up
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MY11 D4 Fuji White Landmark (Gone)
MY11 D4 Silver Commercial(Gone)
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Post #144638421st Mar 2015 10:32 pm
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Fitzy73
 


Member Since: 09 Feb 2014
Location: Truro
Posts: 2407

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Causeway GreyDiscovery 4

Thanks for the link, that does sound very similar.

I didn't really register about the brake pedal until the AA man mentioned it, but it didn't feel as it normally does when starting the car and it was very hard.

That is a very good point, as it didn't ask me to press the brake, the lights all came on, sat nav screen showed the LR logo, blower started etc, then it all went off.

He didn't have any idea regarding the gauge, the illuminated MPH at the bottom of the speedo also flickered as well (earlier, not when having this problem), so perhaps some problem with the dials in general.

I will be booking it in to get that sorted out, along with a couple of other issues (including the alarm).
 Andy

 
 
Post #144638721st Mar 2015 10:36 pm
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Fitzy73
 


Member Since: 09 Feb 2014
Location: Truro
Posts: 2407

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Causeway GreyDiscovery 4

Thanks everyone for the info and causes.

Mine certainly didn't make a sound when pressing the starter and certainly none of the clicks I remember from my Sierra when the battery used to go flat many moons ago.
 Andy

 
 
Post #144639021st Mar 2015 10:45 pm
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RAW
 


Member Since: 14 Oct 2008
Location: Devon
Posts: 936

England 2015 Discovery 4 3.0 SDV6 Commercial XS Auto Indus SilverDiscovery 4

Fitzy the earth is a continuas cable that has three crimp lugs on it, it goes from the Negative to the body then to the chassis and then to the engine block if at any point there is a bad connection it will give you many different electrical faults, where mine had broken it was where it had been crimped and looked like it was damaged when manufactured.
 MY18 RRS Autobiography Fuji White
MY15 D4 silver Commercial
MY11 D4 Fuji White Landmark (Gone)
MY11 D4 Silver Commercial(Gone)
Isuzu Utah D Max(Gone)
John Deere Gator HPX
Nifty Lift HR12
Kubota KX41-2 
 
Post #144639221st Mar 2015 10:55 pm
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Fitzy73
 


Member Since: 09 Feb 2014
Location: Truro
Posts: 2407

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Causeway GreyDiscovery 4

Thanks RAW, I would like to say I will do some investing myself, but probably best I don't and thankfully it is still under warranty, so I will mention it to the dealer as a possible cause.

Did yours start in the end, or not until it was replaced?
 Andy

 
 
Post #144639621st Mar 2015 11:02 pm
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will247
 


Member Since: 05 Jan 2013
Location: York
Posts: 709

United Kingdom 2015 Discovery 4 3.0 SDV6 Commercial XS Auto Santorini BlackDiscovery 4

Fitzy73 wrote:
but it didn't feel as it normally does when starting the car and it was very hard.


This will probably be because you will have pressed it loads while trying to start it while waiting for the yellow taxi,

If you go out and press the peddle half a dozen times without the engine running it will be very hard.
 26 and on the 4th LR..
Series 2a 1963 88'' 2.25 Derv as original with Galv chassis
Disco 1 1996 V8 on LPG (sold now)
Disco 3 2005 TDV6 S (sold now)
Disco 4 MY15 XS Commercial
 
 
Post #144639921st Mar 2015 11:05 pm
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Fitzy73
 


Member Since: 09 Feb 2014
Location: Truro
Posts: 2407

United Kingdom 2010 Discovery 4 3.0 TDV6 XS Auto Causeway GreyDiscovery 4

Very good point Will, it had been pressed quite a bit Whistle
 Andy

 
 
Post #144640121st Mar 2015 11:09 pm
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RAW
 


Member Since: 14 Oct 2008
Location: Devon
Posts: 936

England 2015 Discovery 4 3.0 SDV6 Commercial XS Auto Indus SilverDiscovery 4

It started but only when we put a new link between battery and engine as it had broken away, the ring of the crimp was still attached and where broken 90% of the lug was dirty/corroded so it had been cracked for a while before snapping. If yours is loose or corroded / bad contact and was moved by the AA man not knowingly it may have got enough contact to allow starting again. I would get it checked just to reassure yourself that it is okay as if loose or bad connection it could arc / overheat when starting. The cable has a high current load on starting but once the engine is running the current draw is low. Thumbs Up
 MY18 RRS Autobiography Fuji White
MY15 D4 silver Commercial
MY11 D4 Fuji White Landmark (Gone)
MY11 D4 Silver Commercial(Gone)
Isuzu Utah D Max(Gone)
John Deere Gator HPX
Nifty Lift HR12
Kubota KX41-2 
 
Post #144640221st Mar 2015 11:13 pm
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