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14volts dropping to 12.6 with headlights

Posted: Thu Dec 20, 2007 12:10 pm
by leehamescort
G'day,

I am using a comodore alternator on my surf and it has just been reconditioned but it is only puting out 14 volts not 14.4.

When i increase load ie. put the headlights on, the volts drop back dependant on load, but night driving it drops right back to 12.6v

Any ideas what would be causing this?

thanks for any help.

regards
Leeham

Posted: Thu Dec 20, 2007 12:34 pm
by joel HJ60
Check the regulator mate

Posted: Sun May 04, 2008 8:35 pm
by BenziT
hi..
mine has similar problem.

When i use the signal lights , the voltage will swing between 12 and 14 volts according to the blinkers. At certain times, my radio head unit would reset itself. Especially when i switch on the foggies or the a/c

What seems to be the problem ?

Thanks

btw .. there is a wineing sound that goes louder as i depress the accelerator.

Posted: Sun May 04, 2008 9:05 pm
by ST391GQ
Time to start checking and cleaning all the earth points in vehicle methinks

HTH.


Cheers Keith

Posted: Tue May 06, 2008 12:35 am
by BenziT
thanks

..

Any idea which wire it is most likely to be ?

My battery died when the wire to my winch short circuited when the heat shrink on the connectors broke off due to weathering. Thus, when i ran the winch , my winch heated up and smoke was seen from the winch .

I have repaired the winch and all is good .. seems like I have to :hunt down" the bad earth ... how do i go about it, use a multimeter to check for continuity ?

thanks again

Posted: Tue May 06, 2008 3:26 pm
by cooki_monsta
make sure your altinator is giving out a good charge, the added load might be putting it in a position where it cant handle it :D

Posted: Tue May 06, 2008 7:19 pm
by BenziT
thanks guys for all the advise.

Got it sorted out.

ITs the connection :)

I am a happy camper now :)

Cheers