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post #1 of 18 (permalink) Old 06-11-2011, 09:41 PM Thread Starter
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Extremely Loud Front End Noises.

Recently my 2008 Cobalt LS started making a clunking noise that sounded to be coming from the front passenger side of the car. That was a few days ago so I called to make an appointment to have it looked at.

Tonight the problem/noise got much MUCH worse. Loud smashing sound when going over slight bumps. A quiet "thump thump thump thump..." when going uphill. Almost like a helicopter sound in the distance. Honestly it sounds like a jackhammer underneath the car. But at highway speed everything seemed fine.

From my own visual inspection I cannot see anything broken, but I am not a mechanic.

About 1 year ago I had a control arm bushing and a sway bar link replaced, but this seems much much worse.

Does anyone have any ideas on what it might be.

My guess is that it's gonna be pricey$$$
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post #2 of 18 (permalink) Old 06-11-2011, 09:58 PM
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clunking usually means a worn control arm bushing, i need to go get mine checked out before my warranty is up because im clunking too. i just need to throw on the new struts i bought because i lowered mine and blew my struts, and i guarantee they would blame it on that.
but yeah check out the control arm bushings, that is by far the most common problem. might also be a wheel bearing if its continuous
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post #3 of 18 (permalink) Old 06-11-2011, 11:25 PM
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My car makes loud noises and stuff mostly when I go over bumps or hit the brake hard. I noticed you said you had a problem with your sway bar already, so that probably isn't it but apparently my sway bar is loose and that's what's making the noise. Have yet to get it fixed, though. It's been like this for a year now...lmao.
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post #4 of 18 (permalink) Old 06-11-2011, 11:48 PM
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Could be that your struts are going out or a motor/tranny mount is going out. My friends accord had that problem but was fixed with a new motor mount.



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post #5 of 18 (permalink) Old 06-12-2011, 08:53 AM
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Most likely the control arm bushings. I have had to have mine replaced 3 times at the dealership. Im sure having my car lowered puts more stress on them but my neighbor has a stock balt and she has already had to have hers replaced twice. Not sure why they go out so often but I have been thinking about replacing my with the solid racing bushings

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post #6 of 18 (permalink) Old 06-12-2011, 09:08 AM
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strut mounts are a possibility too.

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post #7 of 18 (permalink) Old 06-12-2011, 09:53 AM
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its a possiblity its all of the above but u said that u already had cab&end links done than its most likely trans mounts mine where so bad u could shake the motor back&forth at least a few inches an the sounds it made are similar to what i had especially the going up hill sound u talk about. try to go an shake your motor if u can move it easily forward&backwards than most likely thats your problem if so go for the ttr insert mounts their alot cheaper than fact. good luck
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post #8 of 18 (permalink) Old 06-12-2011, 10:10 AM
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Wheel bearing!!!!
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post #9 of 18 (permalink) Old 06-12-2011, 10:35 AM
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if it was the wheel brearing it would sound like plane at all times an grinding noise when taking corners.

Last edited by jimiballs; 06-12-2011 at 10:41 AM.
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post #10 of 18 (permalink) Old 06-20-2011, 02:02 PM
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Sway bar bracket bushings is a pretty common problem... not always easy to diagnose though.
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