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Purple_Beasty
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Location:
New Zealand
Registered:
May 2002
Re: Electrical Problems In MA61 Wed, 03 July 2002 08:42 Go to previous messageGo to previous message
One thing I have learnt the hard way, just because your dash light says your alternator is charging doesn't mean you're not using more power than it is making. On two of my previous cars I found that despite travelling at a reasonable speed using my foglights and spotlights on and off on a long trip at night would drain my battery to the point where my car cut out.
In one car I had volt meter, ammeter and warning light. As long as your alternator is charging the volt meter will read this voltage and the warning light will not come on. The ammeter is the only way to tell if the electrical load you are using is too high. If it swings negative, your battery is being drained.
Both these vehicles had charging systems in good condition with good batteries.

Back to the question at hand.
A few simply places to check first to maybe determine your problem are -
is the fan belt tight
is your voltage regulator working correctly
To eliminate insufficent alternator size as a suspect, if you pull over the car as soon as everything dims ors cuts out and the engine is still able to restart easily then this is not the problem. Other things to consider include putting additional earth straps between the battery and the body, and the body and the engine block (ensure a good bare metal contact). Some cars tend to have piddly little earth straps that corrode easily.

I would also recommend to anyone worried about their electrical system to get an accurate ammeter. A volt meter only tells you the condition of your alternator, not how much load your electrical system is under.

Purple Beasty
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Read Message   Electrical Problems In MA61 ZZT231Sun, 30 June 2002 12:08
Read Message   Re: Electrical Problems In MA61 justcallmefrankMon, 01 July 2002 00:05
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Read Message   Re: Electrical Problems In MA61 NorbieMon, 01 July 2002 07:25
Read Message   Re: Electrical Problems In MA61 ZZT231Mon, 01 July 2002 08:41
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Read Message   Re: Electrical Problems In MA61 NorbieMon, 01 July 2002 09:59
Read Message   Re: Electrical Problems In MA61 Red2DoorMon, 01 July 2002 10:18
Read Message   Re: Electrical Problems In MA61 NorbieTue, 02 July 2002 08:22
Read Message   Re: Electrical Problems In MA61 SUPRAGTETue, 02 July 2002 10:44
Read Message   Re: Electrical Problems In MA61 Tue, 02 July 2002 11:08
Read Message   Re: Electrical Problems In MA61 TOY77Tue, 02 July 2002 22:02
Read Message   Re: Electrical Problems In MA61 ed_ma61Wed, 03 July 2002 06:56
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Read Message   Re: Electrical Problems In MA61 ed_ma61Wed, 03 July 2002 09:28
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Read Message   Re: Electrical Problems In MA61  Purple_BeastyWed, 03 July 2002 08:42
Read Message   Re: Electrical Problems In MA61 SUPRAGTEWed, 03 July 2002 09:54
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Read Message   Re: Electrical Problems In MA61 St3ve_AE92Wed, 03 July 2002 14:21
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