 | Home > Td5 > Speedo goes mad.. |
 
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| Gareth Member Since: 12 Dec 2011 Location: Bramhall Posts: 1097  
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When I first start up my TD5, the speedometer needle shoots up to about 70mph, despite me not going anywhere! It soon returns to normal, and works normally and drives fine.
Any ideas? 2021 Defender 110 X-Dynamic HSE D300 MHEV 1966 S2a 109 aka Betsy 1968 S2a 88 aka Bob 2014 Jaaaag F Type 3.0 Supercharged. |
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29th Dec 2012 9:08am |
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| me@td5.org Member Since: 16 Jan 2011 Location: Warwick Posts: 856 
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Had the same thing intermittently. No idea what causes it!
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29th Dec 2012 9:14am |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5663 
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Try running new earth direct from battery to ECU mount, and possibly to bulkhead.
Andy |
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29th Dec 2012 9:58am |
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| Green Machine Member Since: 19 Nov 2010 Location: North Yorkshire Posts: 1226  
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Mine did it once a few weeks back too - quite plausible that was water, we had a lot of it at the time! As an aside - does any one else's Td5 fuel gauge drop to zero then come back up again on startup? Noticed mine does it, but not sure if it always has done. 2005 Td5 | 90 Station Wagon | Tonga Green
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29th Dec 2012 10:43am |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248  
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Sometimes my fuel gauge drops to zero on start up. Probably 1 in 20 or 30 starts.
Bob 2015 Jaguar XE240 R Sport - goes like ....... !! 2013 Defender 90 CSW - sold 2009 Defender 110 Double Cab - sold 2001 TD5 90 CSW - offroad project - sold to a forum member 2011 Porsche Boxster - for the sunny days ! |
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29th Dec 2012 11:22am |
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| achuakh Member Since: 12 Apr 2012 Location: Singapore Posts: 158  
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Weak battery. Change a new fresh battery fully charged and it goes away. I've had this on my 90 n a friend's 110 whose battery was on the way out. This is followed by the fuel gauge dropping to empty before returning to where it should be after starting. From the land of the most expensive land rover defenders on planet earth. At �125k for a XS 110 csw and you get to own it only for 10yrs! Please find me a good reason to stay on this island.
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29th Dec 2012 2:31pm |
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| bob neville Member Since: 30 Apr 2009 Location: Marbella Posts: 3248
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Thanks Achuakh
I think my battery is 10 years old 
I have a new one here already charged and ready to fit when it stops raining. Bob 2015 Jaguar XE240 R Sport - goes like ....... !! 2013 Defender 90 CSW - sold 2009 Defender 110 Double Cab - sold 2001 TD5 90 CSW - offroad project - sold to a forum member 2011 Porsche Boxster - for the sunny days ! |
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29th Dec 2012 3:10pm |
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