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battery light keeps coming on 

 

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 Post subject: battery light keeps coming on
Posted: Sat Mar 25, 2006 1:52 pm 
Oompa Loompa
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Ride: AU fairmont

Location: canberra
ACT, Australia

The battery light in my AU fairmont keeps flicking on every now and then. it will come on for about 5 seconds, then go off and come on again a couple of days later, or do it a few times in a short trip etc - very random.

When it does come on the most it has stayed on for is 5-10 seconds. the battery guage still says its charging good and doesn't change when the light comes on/off and the car is never hard to start, so im a bit confused as to why the light is coming on and if i should check some things might be playing up/on their way out?
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Posted: Sat Mar 25, 2006 2:58 pm 
Getting Side Ways
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Ride: BA Falcon

Location: Melbourne
VIC, Australia

so the light comes on even when the guage is showing a healthy reading?

maybe the belt is slipping...
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Posted: Sat Mar 25, 2006 3:08 pm 
Getting Side Ways
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yeh mate check the belt

 

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Posted: Sat Mar 25, 2006 3:19 pm 
Getting Side Ways
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NSW, Australia

cheak your wires . the plug might be dirty
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Posted: Sat Mar 25, 2006 8:00 pm 
Getting Side Ways
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if the gauge drops down a bit in that time, your alterator is crook

 

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Posted: Sat Mar 25, 2006 8:33 pm 
Getting Side Ways
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cover it with sticky tape like on the simpsons

 

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Posted: Sat Mar 25, 2006 9:05 pm 
Getting Side Ways
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Location: canberra
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well could be a few things, one the wires to the light are shorting, there is a loose alt battery connection, the alternator is not always charging. if it continues then i would check first loose connections of main wires eg alt batter body earth's ect, then go to smaller problems. check wiring diagrams, does the light get switched on from the alterator or by a controk modual
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Posted: Sat Mar 25, 2006 9:15 pm 
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Check the brush length on the regulator too. Should be two screws and the whole thing comes out. Be SURE to disconnect the battery when doing this, as the contacts C**k to one side during removal and will short out something.

 

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Posted: Sat Mar 25, 2006 9:19 pm 
Getting Side Ways
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Ride: Ford FPV FG F6 310

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QLD, Australia

it won't be 2 screws if it's a mitsubishi alternator.
you have to split those alternators to check them.

 

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Posted: Sat Mar 25, 2006 9:48 pm 
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Damn! I was hoping to put this spare $40 regulator to good use one day :(

extras from the EB

 

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EB II Sedan <--- R.I.P. (Rest in pieces - gone to the wreckers for $50...... bargain!)

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