GS - 3rd Gen (2006-2011) Discussion about the 2006+ model GS300, GS350, GS430, GS450H and GS460

Humming in rear of gs300 2006 lexus

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Old 02-17-18, 05:37 PM
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Jimharward
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Default Humming in rear of gs300 2006 lexus

Car hums pretty loud in rear of 2006 Lexuss gs300
Old 02-18-18, 02:29 PM
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MX73
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It could be a number of things. Bad tires or wheel bearing going out.
Old 02-18-18, 03:24 PM
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TRD_Power
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Could be the diff. Maybe do a drain and fill on the fluid and see if that helps.
Old 02-18-18, 04:25 PM
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I vote wheel bearings. The humming generally starts around 30mph and up. Have your technician test drive your car and he/she will know right away. Not sure how much the fix costs.
Old 02-18-18, 05:04 PM
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ibidu1
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Run your hands across the tread of the rear tires feeling the thread. If theres feathering/uneven lifting on the tires, then they are bad and you either have a bad bushing or just bad alignment.

If the tires are good and flat! Drive the car and focus where the humming sound is coming from. Next swerve the car from left to right, if the humming goes away when the car is leaning to any side then thats probably a bad wheel bearing.

These are the most common
Old 02-20-18, 01:40 PM
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XxGoKoUxX
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How i diagnose bad wheel bearings is to jack the car up (one side at a time) and i wobble the wheels back and forth (still secured to the car)

if there is play, bad wheel bearing. That has worked on my previous cars, im not sure if that will work on our vehicles.
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