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12V Whining Noises

noises 12V

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#1 CharlieUK

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Posted 15 January 2014 - 11:25 PM

My fiesta 1.25 56 plate has developed a strange wheezing/whining noise from the 12V  plug in the cabin. It only seams to appear when I charge my phone from a low battery state as though it is trying to suck more power in,It gets louder s I acelerate a bit like a tinny turbo. is it something  should be worried about or is it nothing. Cheers



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#2 stef123

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Posted 16 January 2014 - 08:51 AM

I have noticed this with a few phone chargers, one of mine does it too and has done since new but only in the Ibiza..I wouldn't worry about it - I know it's annoying though

#3 BigD

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Posted 16 January 2014 - 08:58 PM

It's might be a leaking capacitor in the 12V port.  They basically store power to smooth the outflow, and they tend to make a high-pitched whine when they're going bad.

 

You could take the socket out and have a look around.  Usual signs are the capacitor bulging, or brown residue on the end of the capacitor.




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