Author Topic: clunking noise on front end over bumps  (Read 6524 times)

October 17, 2009, 08:10:18 pm

92EcoDiesel Jetta

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clunking noise on front end over bumps
« on: October 17, 2009, 08:10:18 pm »
I get a metal to metal noise when I go over bumps, but when the brakes are appllied, I don't get the clunk or it's greatly minimized. It was suggested that I may be missing the retainer clips on the front brake pads. I checked and they're there. Can a bad strut bearing do that? Would braking stop the clunk on a bad strut bearing mount? Is there an easy way to check it without disassembling it?
« Last Edit: October 17, 2009, 08:22:21 pm by 92EcoDiesel Jetta »

Reply #1October 17, 2009, 08:15:37 pm

truckinwagen

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Re: clunking noise on front end over bumps
« Reply #1 on: October 17, 2009, 08:15:37 pm »
honestly sounds like a front wheel bearing, jack the front end up and wiggle the front wheel to see if there is excessive play in the bearing
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Reply #2October 17, 2009, 11:14:57 pm

neimis

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Re: clunking noise on front end over bumps
« Reply #2 on: October 17, 2009, 11:14:57 pm »
Other things to inspect - lower control arm bushings, especially rear (my 2 year old Febi were trashed! maybe defective...) antisway bar bushings (inners and on links), ball joints, all strut parts (had wear on the upper spring plate once, caused clunking) Unfortunately most of this requires disassembly.
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Reply #3October 18, 2009, 07:08:35 am

burn_your_money

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Re: clunking noise on front end over bumps
« Reply #3 on: October 18, 2009, 07:08:35 am »
Are your calipers loose? Like flopping around loose?

Ball joints would also be highly suspect as well as anything else in the front end.
Tyler

Reply #4October 18, 2009, 01:41:40 pm

Jettage1

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Re: clunking noise on front end over bumps
« Reply #4 on: October 18, 2009, 01:41:40 pm »
Also, what's the noise like?  High pitched screech, or more of a thunk / clunk?  And is it only timed / heard with the impact of the bump, or is it heard other times too?  Rhythmic, increasing with speed, or unrelated?
Steve

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Reply #5October 18, 2009, 02:25:57 pm

92EcoDiesel Jetta

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Re: clunking noise on front end over bumps
« Reply #5 on: October 18, 2009, 02:25:57 pm »
Not high pich or screech but an impact metal to metal like a clasp hitting each other, timed with hitting dips or bumps  in the road. While under braking, no clunk over bumps or dips.

Reply #6October 18, 2009, 06:52:11 pm

Kanzan

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Re: clunking noise on front end over bumps
« Reply #6 on: October 18, 2009, 06:52:11 pm »
Check the lower steering column bearing. Mine did the same thing, the plastic ring that holds the lower bearing in dries out and allows the bearing to fall out. Push the bearing back in, push the plastic ring in after it and use a 1 3/16" split collar to hold it all together. That got rid of lots of rattles in my Caddy.  Kanzan

Reply #7October 18, 2009, 06:54:14 pm

Kanzan

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Re: clunking noise on front end over bumps
« Reply #7 on: October 18, 2009, 06:54:14 pm »

Reply #8October 19, 2009, 09:49:42 am

Jay

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Re: clunking noise on front end over bumps
« Reply #8 on: October 19, 2009, 09:49:42 am »
Is it lowered much?

Reply #9October 19, 2009, 04:45:02 pm

vwjones

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Re: clunking noise on front end over bumps
« Reply #9 on: October 19, 2009, 04:45:02 pm »
Check the lower steering column bearing. Mine did the same thing, the plastic ring that holds the lower bearing in dries out and allows the bearing to fall out. Push the bearing back in, push the plastic ring in after it and use a 1 3/16" split collar to hold it all together. That got rid of lots of rattles in my Caddy.  Kanzan

how do you get to that bearing?  is it way up under the dash?  i've looked myself and it wasn't obvious

Reply #10October 19, 2009, 06:00:37 pm

Kanzan

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Re: clunking noise on front end over bumps
« Reply #10 on: October 19, 2009, 06:00:37 pm »
Not up under the dash, look down by your feet. Slide your drivers seat as far back as possible. Where the small steering shaft comes out of the larger steering column tube. Kanzan

Reply #11October 19, 2009, 06:04:03 pm

gldgti

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Re: clunking noise on front end over bumps
« Reply #11 on: October 19, 2009, 06:04:03 pm »
I get a metal to metal noise when I go over bumps, but when the brakes are appllied, I don't get the clunk or it's greatly minimized. It was suggested that I may be missing the retainer clips on the front brake pads. I checked and they're there. Can a bad strut bearing do that? Would braking stop the clunk on a bad strut bearing mount? Is there an easy way to check it without disassembling it?

the padretainers may be there but not working..... if they are just old or have been very hot, they eventually are under no tension and do nothing to prevent the pads rattleing around. very likely. had this on all my dubs with gti or later calipers. if your easy on the brakes (so your pads are ancient) its likely the problem.
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Reply #12October 19, 2009, 08:24:33 pm

Black Smokin' Diesel

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Re: clunking noise on front end over bumps
« Reply #12 on: October 19, 2009, 08:24:33 pm »
I had a similar noise in my old NA golf. The brake pads were "clicking" on every bumps. A little high temp silicone solved the issue.

I my B3 I had a clunk on large bumps. Turned out to be the swaybar endlink's nut not being tight enough.

It can be a LOT of things. Raise the car and check everything that might be loose.
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Reply #13October 20, 2009, 06:05:47 am

92EcoDiesel Jetta

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Re: clunking noise on front end over bumps
« Reply #13 on: October 20, 2009, 06:05:47 am »
Thanks for all the suggestions. I hope gldgti 's suggestion is the correct one, that the old pad retainers are not working. When I did look at them (without knowing what they should be like), I thought they were kind of odd because they were just floating around and not exerting any tension on the pads. I just called the dealer and ordered a set of pad retainers and will see if it get rid of the noise.