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Knocking noise by front passenger side?

Tiny
RTSTROCK30
  • MEMBER
  • 2005 SCION TC
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 110,000 MILES
Replaced the strut about 6 months ago and just replaced the sway bar links today thinking that was it they definitely needed it, but the knocking still persists. Anyone have any ideas?
Friday, August 26th, 2022 AT 1:23 PM

18 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,490 POSTS
Most of the time after struts and sway bar links you have lower ball joint or sway bar to body mounts, also when you did the struts did you do the strut mounts? (Entire strut) use a flashlight to inspect # 13, 11 and #9 lower control arm bushings in the diagrams below. Can you please shoot a quick video with your phone so I can hear the noise? That way I can tell for sure what's going on. You can upload it here with your response.

This guide may help out as well:

https://www.2carpros.com/articles/popping-noise

Check out the diagrams (below). Please let us know what happens.
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Saturday, August 27th, 2022 AT 10:02 AM
Tiny
RTSTROCK30
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I replaced the whole strut assembly that I ordered off rock auto If that helps, haha. I will get a video to you as soon as I get a chance. In the last year I've replaced the strut assembly cv axle wheel bearing and now the sway bar links.
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Sunday, August 28th, 2022 AT 11:20 AM
Tiny
KEN L
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Can you look at the sway bar to frame mounts to see if they are bad? Good job getting the entire strut, so we know it's not the strut mount.
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Monday, August 29th, 2022 AT 12:36 PM
Tiny
RTSTROCK30
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  • 12 POSTS
I'm currently uploading a video and the sway bar seems to be still as can be. It sounds like there's something loose rattling around? I have no idea what it is.
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Monday, August 29th, 2022 AT 4:32 PM
Tiny
RTSTROCK30
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Another video.
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Monday, August 29th, 2022 AT 5:05 PM
Tiny
RTSTROCK30
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  • 12 POSTS
As I drove it this morning, I noticed it's not my suspension or anything to do with it because it doesn't happen over bumps alone but it's also kind of random too whereas I've noticed to hit some bumps with nothing happening where I felt it should have if it were a suspension issue.
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Tuesday, August 30th, 2022 AT 12:01 PM
Tiny
KEN L
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Thanks for the videos, it sounds like the noise is inside the car, when it makes the noise can you press on the dashboard to see if it changes? Also move the HVAC settings to see if that affects it. It could be a blend door actuator noise.
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Wednesday, August 31st, 2022 AT 11:16 AM
Tiny
RTSTROCK30
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  • 12 POSTS
It's outside, maybe this video might help some more. I did that with my HVAC, and it didn't make any difference. Yesterday I sat on my motor while I had my buddy drive down the street to see if I could physically see anything and I can confirm it has to do with the suspension I just don't know what part. The noise coincides with the movement of my sway bar, but my sway bar is as tight as can be so I'm thinking maybe it is my strut or even that strut mount.
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Wednesday, August 31st, 2022 AT 3:01 PM
Tiny
RTSTROCK30
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  • 12 POSTS
Video.
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Wednesday, August 31st, 2022 AT 3:02 PM
Tiny
RTSTROCK30
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  • 12 POSTS
I found this sitting on top of my frame basically by my sway bar mount. Any idea what it goes to?
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Wednesday, August 31st, 2022 AT 3:57 PM
Tiny
KEN L
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Thanks for the pics and videos. The part you found looks like the sway bar mount bushing which will definitely cause the noise. Here is how you can replace it in the images below. Check out the diagrams (below). Please let us know what you find.
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Friday, September 2nd, 2022 AT 9:16 AM
Tiny
RTSTROCK30
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It really doesn't look like there's anything wrong with either side unless that's not supposed to come off the bottom?
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Saturday, September 3rd, 2022 AT 5:14 PM
Tiny
KEN L
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Nope, those look okay. Does the other side look the same?
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Monday, September 5th, 2022 AT 8:57 AM
Tiny
RTSTROCK30
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Yes.
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Monday, September 5th, 2022 AT 8:00 PM
Tiny
RTSTROCK30
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  • 12 POSTS
Idk where that piece would have or even could have come from.
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Monday, September 5th, 2022 AT 8:00 PM
Tiny
KEN L
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Maybe it was on the road and the car just picked it up which is possible.
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Tuesday, September 6th, 2022 AT 11:01 AM
Tiny
RTSTROCK30
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Yeah, I guess I never thought about that. I'm starting to think that it's my strut mount. That's what it sounds like where it's coming from.
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Wednesday, September 7th, 2022 AT 4:09 AM
Tiny
KEN L
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Yep, I was going to suggest that next, you can get complete struts now from Amazon or Rockauto. Com check out the images below.
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Wednesday, September 7th, 2022 AT 12:35 PM

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