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Noise: Whoosh, Rattle, Tornado

5bucks

NAXJA Forum User
Location
Rochester, NY
Occasional tornado like whoosh and rattle noise coming from the front end fan area. Related to engine rpms. Never been able to reproduce in the driveway revving engine or at idle when driving. Seems like engine hits a certain rpm when accelerating from stop that induces the noise. Once up to speed and rpms settle It will stop with further gentle acceleration. Very intermittent...happens some days then nothing for a few days. It's happenned with the AC on or off, but seems slightly more likely to happen when the AC is on. I'm thinking fan clutch. Any ideas?
 
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