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RX - 3rd Gen (2010-2015) Discussion topics related to the 2010 - 2015 RX350 and RX450H models

Knocking from front strut

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Old Jun 17, 2024 | 07:38 AM
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Default Knocking from front strut

There is a knocking sound from the driver's front strut area.
What could cause this? There is nothing obviously loose, or visibly broken,
Strut bearing or bumper?
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Old Jun 17, 2024 | 09:17 AM
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If you have never replaced your front upper shock mounts, that is typically the issue. Your factory ones have long since degraded. Search this forum using "front shock mount replacements" as your search phrase and read all about it, including where to obtain the best replacements....
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Old Jun 17, 2024 | 10:36 AM
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Thanks!
I gather replacing the mount requires a wheel alignment after?
If so it would likely make sense to put in new struts as well?
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Old Jun 18, 2024 | 04:39 AM
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What is your current odometer reading?
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Old Jun 18, 2024 | 04:49 AM
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Originally Posted by RX in NC
What is your current odometer reading?
280k kms. (174k miles)

Owner since Feb 2021 (150k kms.) and lacking earlier maintenance records
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Old Jun 18, 2024 | 06:20 AM
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You may as well replace the struts at the same time because the labor is the same. To replace the strut mounts, or the struts, they have to be removed from the vehicle, then placed into a spring compressor to safely take it apart. Once apart it is only a few more minutes labor to replace the entire strut vs just the mount or its bearing. Given your mileage, get some new struts. You will need an alignment afterwards.

I assume you will have a shop do all this work so will not go into further detail on the procedure. Any independent car repair shop can do this simple to them job as struts suspensions are the same on every make, have been around for over 50 years and they have all done thousands of these jobs.
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Old Jun 18, 2024 | 07:57 AM
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^^ What he said.
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Old Jun 18, 2024 | 09:19 AM
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Pass on using ''quickstruts'' the struts w/ springs........Get a pr of KYB's & use your oem springs & I'd use the Toyota oem strut mounts. I've had issues w/ the KYB strut mounts on varies vehicles. And of course get a 4 wheel alignment, as anytime you remove the struts you'll need to do a alignment. Basically setting the front & rear toe as well as the thrust angle.
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