# Wierd Clunking Noise in Rear, Acura CL

**URL:** <https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861>\
**Category:** Shift518 Automotive\
**Created:** [January 20, 2010, 10:17pm UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861 "2010-01-20T22:17:30Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![NickAlero](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nickalero/32/6440_2.png) [@NickAlero](https://forums.speedlife.net/u/NickAlero)\
**Post date:** [January 20, 2010, 10:17pm UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/1 "2010-01-20T22:17:30Z")

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I would throw this up on AcuraZine, but the CL section is so dead and inactive its not worth it.  
This started 2 days ago. I have a loud metal scraping sound in my right rear wheel well. When driving in a strait line and decelerating, this only happens when driving under 5 mph or so. When accelerating, the sound is heard up to 15-20mph. The car pulls left when driving at increased speeds. When turning left, the sound is heard, but is not heard when turning right. I have noticeably bad camber in my rear wheels. I think this may be the weight of the subs, but they have only been in for a week or so. My rear right wheel shows signs of being bent, it eats through tires or isn’t sealing right somewhere.

My Ideas:

1. Pull subs out, see if issue goes away
2. Put steelie on and drive a bit, see if issue goes away.
3. Get alignment.

Anyone else want to add any ideas? I’m new to Hondas/Acuras, and have not worked on this car nearly enough to get to know it like I did the Olds. Any input is appreciated, thanks all.

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**Author:** ![ReDevil](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/redevil/32/6385_2.png) [@ReDevil](https://forums.speedlife.net/u/ReDevil)\
**Post date:** [January 20, 2010, 10:21pm UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/2 "2010-01-20T22:21:58Z")

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Wheel bearing. Whats the mileage on the car?

Or brakes. Is it disc?

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**Author:** ![NickAlero](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nickalero/32/6440_2.png) [@NickAlero](https://forums.speedlife.net/u/NickAlero)\
**Post date:** [January 20, 2010, 10:29pm UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/3 "2010-01-20T22:29:42Z")

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Car has 125K on it and has disk brakes all around. I’ll add the “wiggle the wheel” test to my check list tomorrow.

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**Author:** ![ReDevil](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/redevil/32/6385_2.png) [@ReDevil](https://forums.speedlife.net/u/ReDevil)\
**Post date:** [January 20, 2010, 10:37pm UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/4 "2010-01-20T22:37:57Z")

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Yeah check the bearing, thats my first guess.

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**Author:** ![88slowmarro](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/88slowmarro/32/6339_2.png) [@88slowmarro](https://forums.speedlife.net/u/88slowmarro)\
**Post date:** [January 21, 2010, 4:42am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/5 "2010-01-21T04:42:25Z")

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sway bar end links

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**Author:** ![bennyfizzle](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bennyfizzle/32/6291_2.png) [@bennyfizzle](https://forums.speedlife.net/u/bennyfizzle)\
**Post date:** [January 21, 2010, 4:56am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/6 "2010-01-21T04:56:08Z")

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and a horrible alignment.

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**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\
**Post date:** [January 21, 2010, 4:58am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/7 "2010-01-21T04:58:44Z")

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and a bad wheel.

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**Author:** ![bennyfizzle](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bennyfizzle/32/6291_2.png) [@bennyfizzle](https://forums.speedlife.net/u/bennyfizzle)\
**Post date:** [January 21, 2010, 5:26am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/8 "2010-01-21T05:26:10Z")

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and a a bad control arm bushing or 7.

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**Author:** ![car\_ramrod](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/car_ramrod/32/6441_2.png) [@car\_ramrod](https://forums.speedlife.net/u/car_ramrod)\
**Post date:** [January 21, 2010, 5:31am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/9 "2010-01-21T05:31:23Z")

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and a bad driver

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**Author:** ![bennyfizzle](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/bennyfizzle/32/6291_2.png) [@bennyfizzle](https://forums.speedlife.net/u/bennyfizzle)\
**Post date:** [January 21, 2010, 5:35am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/10 "2010-01-21T05:35:39Z")

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and a spiteful cod player

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**Author:** ![Wayne64SS](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/wayne64ss/32/6365_2.png) [@Wayne64SS](https://forums.speedlife.net/u/Wayne64SS)\
**Post date:** [January 21, 2010, 5:44am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/11 "2010-01-21T05:44:59Z")

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> [@WTF: IT Internship](https://forums.speedlife.net/t/wtf-it-internship/28436/7):
>
> sway bar end links

THIS or maybe brakes. If you want to bring it by my place I will have a look at it for you.

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**Author:** ![DUKE\_LADUKE](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/duke_laduke/32/6317_2.png) [@DUKE\_LADUKE](https://forums.speedlife.net/u/DUKE_LADUKE)\
**Post date:** [January 21, 2010, 6:09am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/12 "2010-01-21T06:09:36Z")

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dead cat

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**Author:** ![K20power](https://avatars.discourse-cdn.com/v4/letter/k/41988e/32.png) [@K20power](https://forums.speedlife.net/u/K20power)\
**Post date:** [January 21, 2010, 6:11am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/13 "2010-01-21T06:11:19Z")

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sounds junk to me

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**Author:** ![6SPD\_S4](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/6spd_s4/32/6326_2.png) [@6SPD\_S4](https://forums.speedlife.net/u/6SPD_S4)\
**Post date:** [January 21, 2010, 6:11am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/14 "2010-01-21T06:11:25Z")

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Must be those subwoffers

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**Author:** ![99FRC](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/99frc/32/6335_2.png) [@99FRC](https://forums.speedlife.net/u/99FRC)\
**Post date:** [January 21, 2010, 7:53am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/15 "2010-01-21T07:53:38Z")

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It is the dust plate behind your rotor. Somehow it got bent and is rubbing against the rotor.

I know because this exact same thing has happened to me. The sound even diminished for me when turning a certain direction, and went away when I got up to speed.

Check the dust plate behind the rotor. Bend it back away from the rotor and then try again. Of course, if you car is pulling in a certain direction, this would not cause that and is a seperate issue.

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**Author:** ![Alpine](https://avatars.discourse-cdn.com/v4/letter/a/4da419/32.png) [@Alpine](https://forums.speedlife.net/u/Alpine)\
**Post date:** [January 21, 2010, 11:09am UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/16 "2010-01-21T11:09:45Z")

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> [@local artist paid us a visit](https://forums.speedlife.net/t/local-artist-paid-us-a-visit/28596/11):
>
> It is the dust plate behind your rotor. Somehow it got bent and is rubbing against the rotor.
> 
> I know because this exact same thing has happened to me. The sound even diminished for me when turning a certain direction, and went away when I got up to speed.
> 
> Check the dust plate behind the rotor. Bend it back away from the rotor and then try again. Of course, if you car is pulling in a certain direction, this would not cause that and is a seperate issue.

So then it is NOT the dust plate. :hijacked

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**Author:** ![NickAlero](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nickalero/32/6440_2.png) [@NickAlero](https://forums.speedlife.net/u/NickAlero)\
**Post date:** [January 21, 2010, 1:16pm UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/17 "2010-01-21T13:16:14Z")

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Issues/Resolved Issues:  
Camber issue went away once I left my parking lot…shitty lot.  
Shook the wheel, didn’t move enough for it to be a bearing.  
Took the wheel off, noticed a HUGE gash in my rotor. Looked at my pads, they’re shot. So those are getting replaced tomorrow.

Only question I have is about the sound, its audible at all speeds (had a passenger ride in with me before any physical diagnosis). Is it possible my caliper is seized/stuck?

Thanks for the input all, and Wayne I’ll keep you in mind for future if I have anything serious :thumbup

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**Author:** ![ninety1two40](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/ninety1two40/32/6332_2.png) [@ninety1two40](https://forums.speedlife.net/u/ninety1two40)\
**Post date:** [January 21, 2010, 1:36pm UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/18 "2010-01-21T13:36:33Z")

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Could be wheel bearing

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**Author:** ![Hooked\_on\_240](https://avatars.discourse-cdn.com/v4/letter/h/b9e5f3/32.png) [@Hooked\_on\_240](https://forums.speedlife.net/u/Hooked_on_240)\
**Post date:** [January 21, 2010, 1:39pm UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/19 "2010-01-21T13:39:21Z")

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100% positive its the muffler bearings.

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**Author:** ![NickAlero](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/nickalero/32/6440_2.png) [@NickAlero](https://forums.speedlife.net/u/NickAlero)\
**Post date:** [January 21, 2010, 1:41pm UTC](https://forums.speedlife.net/t/wierd-clunking-noise-in-rear-acura-cl/249861/20 "2010-01-21T13:41:21Z")

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> [@Bought a new house...](https://forums.speedlife.net/t/bought-a-new-house/28600/27):
>
> 100% positive its the muffler bearings.

:wtf

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