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It could be a vacuum leak in the throtle body or intake manifold. Get some carb cleaner and check it. Be careful as the cleaner is flamable.GoodluckJoe

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โˆ™ 2004-07-10 10:59:05
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Q: What could cause a 1990 Nissan Sentra GXE to make a whining noise that gets louder while idling?
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