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2011 Barina Spark Alternator

berttybettle

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Joined
Nov 5, 2011
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Beerwah
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VU Commodore
My Mrs. has a 2011 Barina Spark and it's making a whistling type noise from the alternator, we think. It comes and goes. Seems like the alternator is making a high pitch whistling noise a couple of minutes after the cars been started. Can only think that it's the alternator trying to generate power. Doesn't sound like a bearing sounds more like an electrical kind of whine. Difficult to try and explain exactly what the noise is like. If, for example, the car starts making the noise, and it's parked in the driveway, she gives it a rev and the sound goes away for 5 or 10 seconds and then faintly starts it again. Stumped as to what it actually is. Can only think alternator is having problems. Did test at battery with multimeter and voltage slowly comes down below 13volts from 14.2volts. This is what makes me think that it's definitely the alternator. Doing test with everything on inside. Lights on high beam, air con on, radio on Ect. Any ideas about this??
 
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