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ok i have an auto civic.. everytime I change gear (D - R or vice versa) I always here a whistling sound? and it gets louder if I turn on my headlights? well I noticed it because when I park my car in the garage I always hear this whistling sound.. even if I don't switch the gear yet.. the sound under my car (transmission?) is really annoying.. the last time I changed my oil.. my friend noticed some oil under my transmission... is my transmission messed up or something?

 
Rep Power: 303

yup thats exactly what it seems, i had the same prob w/ my sentra. i torn that sheet up in the canyons

 
Rep Power: 303

btw dude, dont u sleep?

 
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might be the alternator.

 
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I sleep really late.. like 2AM or 2:30

 
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Master, it's coming from underneath though...