the noise seems to be coming from drivers side
1998 honda passport whistling noise during acceleration on 1998 Honda Passport
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So hard to guess without being able to hear the noise first hand. Could it be a loose fan belt, or a vacuum leak, from the engine intake manifold?
ive been told its prob an exhaust leak, intake manifolds were replaced noise still there, is a high pitched whistle and only during acceleration level speed or idling it doesnt do it. seems to be no miss in the engine