2018 Mazda 6 suspension knock noise - Page 4 - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #31 of 78 (permalink) Old 07-11-2018, 11:09 AM
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Quote:
Originally Posted by GTEyes View Post
Interesting.
I wish I could have a day with the technician to troubleshoot with him.
Everyone has ideas that could so easily be what the noise is.
How's this coming along for you mate? Get it figured out yet? Or no progress as of lately?

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post #32 of 78 (permalink) Old 07-11-2018, 11:29 AM Thread Starter
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Originally Posted by Chazzy J View Post
How's this coming along for you mate? Get it figured out yet? Or no progress as of lately?

The dealer has ordered some parts and it goes in for service on the 23rd.

Having said that, I see there is a service bulletin posted in the Mazda3 forum which I am seriously thinking could be the issue. I don't understand why the dealer didn't see this when they started the investigation.



2-001/18 the Mazda Service Bulletin
and it's to replace a faulty rubber spring seat on the bottom of the strut where the spring sits. This part was mentioned previously by a forum member as potentially being the issue and it just seems to make sense. I am trying to get the actual service bulletin document to see how it reads and if it is related to my situation. Again, I am just flipping this info. to the dealer for things to inspect.



As for an update on the noise, the car has started making a separate, pronounced different sounding knock noise when turning out of my driveway first thing in the morning..it's coming from the same area as the other noise (front driver's strut)...hoping it's related, as there is a significant grade difference between my driveway and the road, so it's sort of the same situation that's making it make the other noise. Only difference is I am turning left and the previous noise happens when turning right.
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post #33 of 78 (permalink) Old 07-11-2018, 12:16 PM
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Quote:
Originally Posted by GTEyes View Post
The dealer has ordered some parts and it goes in for service on the 23rd.

Having said that, I see there is a service bulletin posted in the Mazda3 forum which I am seriously thinking could be the issue. I don't understand why the dealer didn't see this when they started the investigation.



2-001/18 the Mazda Service Bulletin
and it's to replace a faulty rubber spring seat on the bottom of the strut where the spring sits. This part was mentioned previously by a forum member as potentially being the issue and it just seems to make sense. I am trying to get the actual service bulletin document to see how it reads and if it is related to my situation. Again, I am just flipping this info. to the dealer for things to inspect.



As for an update on the noise, the car has started making a separate, pronounced different sounding knock noise when turning out of my driveway first thing in the morning..it's coming from the same area as the other noise (front driver's strut)...hoping it's related, as there is a significant grade difference between my driveway and the road, so it's sort of the same situation that's making it make the other noise. Only difference is I am turning left and the previous noise happens when turning right.
Was the post referring to the 6 or a Mazda 3? I dont think they use the same strut part.

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post #34 of 78 (permalink) Old 07-11-2018, 12:25 PM Thread Starter
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Quote:
Originally Posted by ocramida View Post
Was the post referring to the 6 or a Mazda 3? I don't think they use the same strut part.

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It was a 3. They may not use the same strut part but at least the tech. working on my car can have a look and know there was an issue with the part on another car.
Just as an FYI, the dealer is putting a spring protector on my car that was intended for a 3, so Mazda Canada is considering options not necessarily aimed at the 6.
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post #35 of 78 (permalink) Old 07-13-2018, 09:20 AM Thread Starter
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Another update. That TSB is NOT for the part that I was told and posted about above. It's for the spring protectors, bump stop, and possibly a bushing replacement. This is for the Mazda3, but this seems to be the approach Mazda is going with my 6. Can't happen soon enough!
I was going to post the pdf TSB but it's too large so I am doing it as jpgs.
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post #36 of 78 (permalink) Old 07-13-2018, 11:58 AM
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I look at this and it reminds me how critical tolerances are. Especially when you stack them up. I would venture to guess that this situation is as frustrating to the engineer who has to deal with parts supplier specs screwing with their design, as much as the customer who has to deal with the side effect caused by out of spec part stack up tolerances.

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post #37 of 78 (permalink) Old 07-13-2018, 12:14 PM Thread Starter
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Quote:
Originally Posted by ocramida View Post
I look at this and it reminds me how critical tolerances are. Especially when you stack them up. I would venture to guess that this situation is as frustrating to the engineer who has to deal with parts supplier specs screwing with their design, as much as the customer who has to deal with the side effect caused by out of spec part stack up tolerances.

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It's certainly frustrating for this customer...who also happens to be an Engineer.
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post #38 of 78 (permalink) Old 07-24-2018, 10:29 AM Thread Starter
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Just an update.


Spring protectors were installed but the noise is still present.
I thought it was indeed fixed as when I had it out after their repair it seemed to be good.
But this morning it's back, so looks like it's going back to the dealer...again.
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post #39 of 78 (permalink) Old 08-03-2018, 07:24 PM
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Update on my situation: I had a strut mount bearing and control arm replaced but the scrunch sound returned. I brought it back and they replaced the spring protector as well. Since I picked it up this afternoon it appears to have stopped the sound. In my case I didn’t have as much of a clunk sound as you did so I don’t know still if we’re fighting the same battle or not. At least my dealership has been very good about working with me on it so far.
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post #40 of 78 (permalink) Old 08-06-2018, 12:50 PM Thread Starter
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Quote:
Originally Posted by Mad Arrows View Post
Update on my situation: I had a strut mount bearing and control arm replaced but the scrunch sound returned. I brought it back and they replaced the spring protector as well. Since I picked it up this afternoon it appears to have stopped the sound. In my case I didn’t have as much of a clunk sound as you did so I don’t know still if we’re fighting the same battle or not. At least my dealership has been very good about working with me on it so far.
Hopefully you’re all fixed up. My car goes in again to the dealer on Wednesday.

The knock noise first thing in the morning is quite loud now and I can feel it in the steering wheel when I hear it. I have sprayed the bushings to see if that helps but not sure if that helped or not.

Car is still doing the wierd pop noise over bumps when the suspension is loaded.
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