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sprinkles08, ASE Certified Technician
Category: Car
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Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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Hyundai: 2006 Tiburon automatic....has a rattling noise under

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2006 Tiburon automatic....has a rattling noise under the hood that ebbs when I turn wheel to the right.?

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Does the noise only happen while moving? If it only happens while moving then it could be coming from a wheel bearing or CV shaft. These would be described more as under the vehicle though.


If it doesn't have to be moving for it to make the noise then I would have a helper inside while you're under the hood trying to locate the source of the noise or at least the area it's coming from. The helper can turn the wheel back and forth as needed and can listen while you move or stabilize components, etc. Sometimes a/c or power steering lines can touch body or other components and rattle, you may be able to hold or push on lines to stop the rattle.


Since the noise stops when turning to the right I would pay most attention to the power steering lines and anything in close vicinity to the steering rack and tie rod ends.


Also watch the belt to make sure what you're hearing isn't belt flutter, The belt may be bouncing around due to a bad tensioner, failed belt, or odd power steering pump loading due to a pump or rack issue. If a belt flutters it can create a noise that sounds like a rattle.

Customer: replied 3 years ago.
Car makes noise in idle mode also....seems to improve greatly when car warms up....make any sense? Could it be an engine issue like a valve or piston?
I really wouldn't expect a noise in the engine itself to change when you turned the steering wheel. You can try removing the belt and momentarily running the engine to see if that makes a difference. If the noise goes away with the belt removed then suspect a power steering related issue or possibly a problem in another engine driven accessory such as the a/c compressor, tensioner or idler pulley, or possibly even the crank damper.
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