Home > Technical (L322) > Can't jump start |
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Andy_J Member Since: 14 Nov 2011 Location: Muir of Ord Posts: 479 |
Hi All
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14th Feb 2016 8:17pm |
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stan Site Moderator Member Since: 13 Jul 2010 Location: a moderate moderated moderator moderating moderately in moderation Posts: 35312 |
was the donor car running? if not then thats the problem.. ... - .- -.
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14th Feb 2016 8:22pm |
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Andy_J Member Since: 14 Nov 2011 Location: Muir of Ord Posts: 479 |
Yep, donor car was running and held at 2000rpm for 10 minutes 56 TDV8 Vogue SE
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14th Feb 2016 8:24pm |
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Andy_J Member Since: 14 Nov 2011 Location: Muir of Ord Posts: 479 |
Jump leads went on to the jump start posts, and were checked with a multi meter for resistance to battery (in case there was a bad connection).
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14th Feb 2016 8:35pm |
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nicedayforit Member Since: 11 Jun 2011 Location: Beside the Solway Posts: 3976 |
I'd be inclined initially to unscrew the -ve Jump post and clean up the thread and cable end clamp to bright shiny metal and refit.
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14th Feb 2016 8:46pm |
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Andy_J Member Since: 14 Nov 2011 Location: Muir of Ord Posts: 479 |
Good point resistance can rise with current
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14th Feb 2016 9:06pm |
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Joe90 Member Since: 29 Apr 2010 Location: Hampshire Posts: 6409 |
I "always" (snigger) use the nut on the suspension turret for the -ve connection, but agree this would be no good if the -ve terminal on the battery itself is not connecting properly. .
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14th Feb 2016 10:12pm |
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Alistair Member Since: 11 Feb 2011 Location: Peterborough / Bordeaux / Andorra Posts: 7932 |
I have short cables with Anderson connectors fitted to all our cars & the same with the jump leads - it means I'm guaranteed a good connection on my end
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15th Feb 2016 7:00am |
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CS Member Since: 14 Apr 2015 Location: Edinburgh Posts: 1378 |
I recall that when my 2004 4.4 had a flat battery there was a problem with jump starting (Discovery recovery vehicle). We called LRA and got advice. I think the battery needed to be shorted out to clear the system. The car seemed to have immobilised itself, perhaps as an anti-theft measure in response to the apparent 'removal' of the battery. Perhaps someone with better technical knowledge than me can confirm? Only Range Rovers since 1988 |
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15th Feb 2016 1:53pm |
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ironhorse Member Since: 13 Dec 2013 Location: birmingham Posts: 355 |
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15th Feb 2016 3:16pm |
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CS Member Since: 14 Apr 2015 Location: Edinburgh Posts: 1378 |
I was inside the car standing by to try to start it - the recovery operator had that part of the conversation with LRA and did what they said to reset the system - hence my suggestion that someone who knows what needed to be done might clarify. Only Range Rovers since 1988 |
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15th Feb 2016 6:32pm |
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