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Topic: Flat Battery (Read 682 times) |
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jon_viola
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Flat Battery
« on: Nov 15th, 2009, 4:14pm » |
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Tried to go to work this morning and the battery was dead. It's new as is the alternator. The lights had not been left on and all the doors were shut properly. The car had not been used since Thursday. Anyone got any ideas why?
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Technology2005
Full Member
Scorpio 2.0 Ultima x 2
Posts: 207
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Re: Flat Battery
« Reply #1 on: Nov 15th, 2009, 4:50pm » |
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Well given the lovely autumnal weather we have been blessed with this weekend the first place I'd be looking would be battery cover and/or drain holes to make sure the fuseboxes aren't sitting in a nice puddle.
David
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Matt
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Manual'd and a 4.0 in the making
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Re: Flat Battery
« Reply #2 on: Nov 15th, 2009, 6:26pm » |
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might just be the drain of the security system, its always active when locked.
as said though check around the battery and drivers fuse box for excess water, the drains can easily get blocked
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FDS2000 Scans - Birmingham
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Geoff_W
Senior Member
98 Ulti2.5tdi Auto
Posts: 1340
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Re: Flat Battery
« Reply #3 on: Nov 15th, 2009, 6:53pm » |
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When you say dead, what do you actually mean?
No power at all.
Lights, windows, radio seats etc but just a click / spinning needles.
Or something else?
What sort of voltage do you have indicated from the battery?
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The winding road goes on and on... or at least it does in Northumberland
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: Flat Battery
« Reply #6 on: Nov 15th, 2009, 9:20pm » |
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As Geoff said, is it dead completely?
Is it an auto and maybe starter inhibited?
Tried it in Neutral?
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy!  |
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Snoopy
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Very old.BAD tempered and missing friends.
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Re: Flat Battery
« Reply #7 on: Nov 16th, 2009, 7:53am » |
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If the battery keeps going completely dead I would suspect the alternator is faulty, even though it is new or reconditioned the battery drain of that magnitude has to something big, to flatten a battery that quickly. well worth checking to see qhat the current drain is when left parked.
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jon_viola
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Re: Flat Battery
« Reply #8 on: Nov 16th, 2009, 10:27am » |
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Thanks for this, i'll check battery drain this eve. The car was completely dead, but come to mention it the battery light is still on at start then goes off when you rev it never to return at any time or engine speed just immediately after starting.
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Geoff_W
Senior Member
98 Ulti2.5tdi Auto
Posts: 1340
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Re: Flat Battery
« Reply #9 on: Nov 16th, 2009, 4:59pm » |
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Jon,
If the battery is dead there will be no drain to check, unless you have recharged it and no battery light.
Please can you be more specific?
Absolutely no noises, clicks or dashboard lights, interior lights, radio then?
No sound of engine turning over or relays?
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The winding road goes on and on... or at least it does in Northumberland
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jon_viola
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Re: Flat Battery
« Reply #10 on: Nov 16th, 2009, 6:59pm » |
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Dead. No nothing. No lights. No battery at all.
So dead my power pack wouldn't start it either and i had to jump it from the Missus car.....
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Geoff_W
Senior Member
98 Ulti2.5tdi Auto
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Re: Flat Battery
« Reply #11 on: Nov 16th, 2009, 8:32pm » |
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Jon,
For it to be that absolutely dead, I suspect either a major earth or wiring fault, possibly linked to your immobiliser, provided that the battery is not faulty(if it is new I would suggest that you take it back so that it can be recharged and checked).
Alternatively as Snoopy says the alternator may be putting absolutely no power in, however you should be getting warning lights in that case.
UPDATED Looking back I see that you have been having a number of fuse box related problems. Are you sure that the master plug on the fuse box has not come adrift?
I also note that you have a diesel, typically the load on the diesel is high and the wrong capacity battery or a lower capacity alternator will simply not hack it.
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jon_viola
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Re: Flat Battery
« Reply #12 on: Nov 16th, 2009, 8:50pm » |
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Could I ask where the master plug is?
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Highlander
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Re: Flat Battery
« Reply #13 on: Nov 16th, 2009, 8:53pm » |
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I think Geoff means the large plug on the front of the drivers side fusebox however the starting and ignition system is run through the battery side fusebox.
If the diodes on the alternator are broken it will drain the battery fast and not show a warning light on the dash
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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Geoff_W
Senior Member
98 Ulti2.5tdi Auto
Posts: 1340
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Re: Flat Battery
« Reply #14 on: Nov 16th, 2009, 8:55pm » |
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Good point Stuart
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The winding road goes on and on... or at least it does in Northumberland
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Highlander
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Re: Flat Battery
« Reply #15 on: Nov 16th, 2009, 9:03pm » |
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Jon did you replace the alternator with a new one or a used one?
Was the new battery fitted before the alternator was changed?
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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jon_viola
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Re: Flat Battery
« Reply #16 on: Nov 16th, 2009, 9:23pm » |
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The alternator was new, the battery fitted about a week before (kwickfit)
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Highlander
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Re: Flat Battery
« Reply #17 on: Nov 16th, 2009, 9:53pm » |
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The old alternator could have destroyed the new battery possibly?
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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