RX - 2nd Gen (2004-2009) Discussion topics related to the 2004 -2009 RX330, RX350 and RX400H models

engine roar rx 330 2005

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Old 06-26-13, 06:58 PM
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suse6
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Default engine roar rx 330 2005

has anyone had an engine roar ? I have rx 330 2005 awd 202,000 miles and for past few weeks have noticed a hum or roar when driving on the interstate. not wanting to sink big money, wondering what this may be coming from
Old 06-27-13, 01:24 PM
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alchemist
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are you sure it's engine related and not wheel bearing?
Old 06-27-13, 04:04 PM
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suse6
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no I am not sure....how can I know if it is wheel bearing? and is this a costly item to repair?
Old 06-27-13, 04:25 PM
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Carver
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How are your tires? Worn tires can roar s well.
Old 06-27-13, 05:49 PM
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suse6
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thx checked tires and they still look good; replaced at 168,800 so should be good at 202,000 miles...what causes a wheel bearing to go bad and any idea on repair costs?
Old 06-27-13, 07:30 PM
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There are a number of things - age, alignment, tires, suspension issues. Given your mileage its not out of the ordinary.
Old 06-27-13, 07:32 PM
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Read this

https://www.clublexus.com/forums/rx-...placement.html
Old 06-27-13, 09:19 PM
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HtownBlue
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Easy way to check if it is engine related is to shift to neutral at high speed and see if pitch or noise changes. If not it is suspension or wheel related (bearing tires etc etc etc).

Keep in mind it is hard to diagnose over the net especially if you are not mechanically minded and cannot give accurate descriptions etc. Not saying that is the case, just saying it can be hard to give an educated opinion without good input. See if it is speed, engine RPM, steering, or road surface related.
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