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steveraspberry
Member Since: 18 Sep 2011
Location: Nr Sevenoaks,Kent
Posts: 2081
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Driving home from Edinburgh today, on about 9 occasions car lost all power. Foot to the floor = no power. Foot totally off the throttle then re-applied, the car drives perfectly afterwards. At one stage we also got the dreaded HDC Unavailable/Special Programs off warnings etc. After we stopped the car let it go to sleep and restarted, these warnings all went and everything was available. The throttle fault still persisted though. My thoughts are perhaps the Throttle Position Sensor is on the blink? Any suggestions gratefully received  Will phone LRA tomorrow and see what they have to say. Car is a MY13 HSE registered in February this year FWIW.
Thanks in advance,
Steve My17 Volvo XC90 Inscription
MY15 Mitsubishi L200 Barbarian
RGK Tiga Fx Wheelchair,
Large Alsation called Abbs 
Medium blue Staffie called Piglet
Medium Alsation called Bailey
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 18th May 2013 4:45 pm |
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steveraspberry
Member Since: 18 Sep 2011
Location: Nr Sevenoaks,Kent
Posts: 2081
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Simon from LRA has been and gone. Recalibrated the brake switch and it's job done. Apparently if the brake lever is lifted by mistake (by catching your foot under it for example), it causes the "ratchet" on the brake switch to open up a few clicks. This then makes the switch super sensitive and then if you catch it even slightly when applying the throttle, it'll override the gas and kill the power. My17 Volvo XC90 Inscription
MY15 Mitsubishi L200 Barbarian
RGK Tiga Fx Wheelchair,
Large Alsation called Abbs
Medium blue Staffie called Piglet
Medium Alsation called Bailey
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| 23rd May 2013 8:47 pm |
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DG
Site Moderator
Member Since: 12 Dec 2005
Location: The Gaff
Posts: 50978
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Good to note the issue ...Glad you got it sorted Steve 21 year LR veteran > D2 GS 2003 > D3 S 2006 > D3 HSE 2009 > D4 HSE 2013 > D4 HSE 2015 > D5 HSE 2018 > DS HSE R-Dynamic P300e 2021
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| 23rd May 2013 9:12 pm |
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Gareth
Site Moderator
Member Since: 07 Dec 2004
Location: Bramhall
Posts: 26774
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Sounds like the brake switch is a thing to watch. Mine had a brake binding issue that was caused by the brake switch. I was told it had slipped on its calibration ratchet and was holding the pedal down slightly.
He told me you only get one go at setting it, it self calibrates when the pedal is first pressed. If it doesn't calibrate properly it causes problems.
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| 23rd May 2013 9:45 pm |
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steveraspberry
Member Since: 18 Sep 2011
Location: Nr Sevenoaks,Kent
Posts: 2081
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Hi Gareth,
Interesting that they say you only get one go at calibrating it. Simon re-calibrated it there and then. Took it out then re-fitted it and it was done. Part of my problem, he felt, was the fitting of the hand controls. This is where he believed the brake pedal had got "lifted" and thereby caused the problem. Hopefully, if this issue does arise then a quick removal and replacement of the brake switch could be a 1st remedy to try?
HTH people My17 Volvo XC90 Inscription
MY15 Mitsubishi L200 Barbarian
RGK Tiga Fx Wheelchair,
Large Alsation called Abbs
Medium blue Staffie called Piglet
Medium Alsation called Bailey
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| 24th May 2013 5:27 am |
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CDS
Site Sponsor
Member Since: 12 Oct 2009
Location: Cornwall & most of the UK!
Posts: 3340
 
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Also don't be ham fisted and twist it the wrong way when fitting  this totally knackers it and means you need to order another new one!!! 
Discovery 3/4 & RRS keys cut and programmed at your home or work
Apple CarPlay/ Android Auto retro fit - see it here
BAS Remaps/ EGR Blanking
Software updates/ enabling
Mobile Servicing & Repairs
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| 18th Jun 2013 8:03 am |
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DSL
Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73079
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Any one got a link to instructions on how to fit the brake pedal switch. I have one in my "just in case crate" but not a scoobie on how to fit it.
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| 18th Jun 2013 8:06 am |
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euangibson
Member Since: 24 Dec 2010
Location: Borders
Posts: 11027
  
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It seems to me,that if LR can get a fix on this infernal brake switch,the majority of our troubles would be over.
It does seem to account for a disproportionate number of the issues involved with owning a Discovery  "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
Timed climate remote
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...
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| 18th Jun 2013 8:08 am |
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DSL
Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 73079
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It's all part of the adventure. If they fixed it they'd find something else to play up and keep us amused and out of trouble.
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| 18th Jun 2013 8:10 am |
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CDS
Site Sponsor
Member Since: 12 Oct 2009
Location: Cornwall & most of the UK!
Posts: 3340
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I'd a write up for you Del, but..................... 
Discovery 3/4 & RRS keys cut and programmed at your home or work
Apple CarPlay/ Android Auto retro fit - see it here
BAS Remaps/ EGR Blanking
Software updates/ enabling
Mobile Servicing & Repairs
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| 18th Jun 2013 2:32 pm |
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