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weird electrical problem

  • chechan rebel
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10 Jul 2011 08:07 #18771 by chechan rebel
weird electrical problem was created by chechan rebel
I thought i had a coil pack problem, changed 1 an no different. I turn power steering ilde changes, central locking..................turn heater on 2 ildle drop then normal, turn heater back to 1 an idle drop again. Do i have a battery problem? when i try to run my 9,500 pound winch engine stalls..........Anybody got ideas?

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  • ex_scamper
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10 Jul 2011 08:28 #18772 by ex_scamper
Replied by ex_scamper on topic Re: weird electrical problem
The first thing I would check is earthing, both from the battery to the body and from the engine to the chassis, if a strap is fitted. In my experience, electrical faults that can only otherwise be explained by demonic possession are down to poor earths.

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10 Jul 2011 09:18 #18773 by facade
Replied by facade on topic Re: weird electrical problem
Sounds perfectly normal to me :whistle:

The idle will change when you turn the steering or switch on a large load, then the idle control kicks in to bring it back.

I would expect a 9500lb winch to pull enough current to reduce the battery voltage considerably, enough to kill the ignition.

Make sure the winch is wired direct to the slave battery, or direct to the uprated starting battery.
If it suddenly breaks, go back to the last thing that you did before it broke and start looking there :)

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10 Jul 2011 19:36 #18792 by mcjimny
Replied by mcjimny on topic Re: weird electrical problem
Sounds just like mine, if its drawing a lot of current ie lights, heater, rear screen etc. it does labour a bit perfectly normal. Its drawing a lot of current. Lots of short journeys don't help either.

Running the winch will be taking more out than the alternator can replace, you'll need twin batteries i'd guess and maybe a beefier alternator. A deeper cycling battery may help like an optima or leisure battery in the short term.
Black Jimny's don't get stuck!

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  • chechan rebel
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10 Jul 2011 22:19 #18800 by chechan rebel
Replied by chechan rebel on topic Re: weird electrical problem
Yeah it still has stock little battery, dont know how old either. Might have to get bigger battery, or dual smalls.........

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11 Jul 2011 09:03 #18804 by Obarno
Replied by Obarno on topic Re: weird electrical problem
If you don't do competitions using the winch, Optima do a yellow top battery that would probably be fine, and fit in the same space as the original battery. It has a cca of 450 which should be alright for most winches.
Have a look at this
www.tayna.co.uk/Optima-Yellow-Top-Batteries-S115-1.html
Manual VVT, 2 1/2" lift, ORA castor corrected arms, 2" ORA body lift, 4:1 transfer box, Uprated front shafts & CVs ERM , ARBs back & front 3.9 diffs, 6 point cage, ORA winch bumper - Superwinch EP9, ORA rear bumper, ORA axle truses, Diff guards ERM , TBR tank guard, Snorkel, Kumho KL71.30.9.50 15

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