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Metallic Rattling sound coming from the right side of my car - took a video

26146 Views 12 Replies 6 Participants Last post by  Cruze2016LimitedLT
So I had my transmission replaced at 50,000km last year because the 4th gear was making grinding sounds. Soon after I start hearing this metallic rattling sound coming from the right side (or at least sounds like it is, could just be bouncing off walls) either way I think I brought it in 3 times to the dealer and each time they came back with No Fault Found, they couldn't hear the noise, except one tech tightened the hub nut, but that didn't fix it. either way I am at 83,000km now and still hearing the sound.

The sound is not specific to any gear, but it come up most often when launching, in 4th and 5th and when under load.

So I decided I needed to prove it so I strapped my phone into the wheel well and took a video:

I felt that a 12 minute video was probably a bit painful to watch, so I cut it down to the loudest part @ 40 seconds long:


Skip to 11:20, that is where it is loudest.


The sound comes up here and there, but it is loudest at 11:20 so just skip to there.

I already emailed the video to the service manager, but just wondering if anyone else has experienced this/what everything thinks it could be?
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· Super Moderator
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Props for sticking your phone in there.

I watched from 10:30. I didn't really pick up on a sound.
 

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Yea.. It's impossible to diagnose over the internet. If your placement in the car was correct the right side should be where all the belts and pulleys are. The left side (drivers side) is where the transmission is. So what your probably hearing there is either improper belt tension or an AC clutch engaging or making sounds. But again, impossible to diagnose just by watching a video.
 

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Discussion Starter · #7 ·
Yea.. It's impossible to diagnose over the internet. If your placement in the car was correct the right side should be where all the belts and pulleys are. The left side (drivers side) is where the transmission is. So what your probably hearing there is either improper belt tension or an AC clutch engaging or making sounds. But again, impossible to diagnose just by watching a video.
Yea, I thought as much. Was really just hoping I could find someone who experienced the sound before. I keep feeling like it has to be somewhere in the drive train because it only happens when giving the car gas. I never run the AC so I doubt it that and likely the reason I hear it from the right side is because the concrete walls the sound has to bounce off of are always on my right.

I did upload a less painful to watch 40 second clip of where I think it is loudest.

 

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Okay - I've now listened to the shorter one three times.

The initial sound sounds like something dragging, like a loose chain against the ground.

Then the sound changes to a definite rotational sound.

You need to determine if it is related to engine speed or wheel speed.

If engine look to the accessory belt and pulleys.

If wheel look to the hub, rotor or CV joint.

I don't think it's rotor, as this usually sounds like a circular saw cutting steel.

it could be a brake pad wear sensor against a rust ridge. This typically sounds like a bird chirping.
 

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Discussion Starter · #9 ·
Well I heard back from the Service manager at my dealership, I'm going there tonight to see if I can replicate it in person. Now I just have to hope and pray its not one of those days it does not do it at all.
 

· Chevrolet Customer Assistance Representative
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Well I heard back from the Service manager at my dealership, I'm going there tonight to see if I can replicate it in person. Now I just have to hope and pray its not one of those days it does not do it at all.
cruzing90,

Let us know how your visit turns out. If additional assistance is needed, please message us privately regarding these matters!

Sincerely,

William R. (assisting Jackie & Erica)
Chevrolet Customer Care
 

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Discussion Starter · #11 ·
Well the service manager finally heard it and acknowledged it. He is leaning towards brakes, upon a quick visual inspection they are looking kind of worn and I am getting feedback at high speeds. So I am going to do pads and rotors myself and see if that fixes it. Otherwise I have an appointment to leave it while I go on vacation in September.
 

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Thanks for getting back to us.
 

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This is a normal noise. I have tested with several different cruze's. Although the newest models(2016>) do not seem to make this noise. I had parts replaced before finding out it was normal. It is very annoying. You can only hear it if you're in an enclosed area with no wind or noise. I live in a small town where I can reproduce the noise everyday and plus I am tuned into it. Still not sure exactly what the cause of the noise is though. I did have a turbo replaced.
 
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