Front End "clunk" While Applying Brakes - Chevy Cobalt Forum / Cobalt Reviews / Cobalt SS / Cobalt Parts
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post #1 of 11 (permalink) Old 05-26-2014, 10:32 PM Thread Starter
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Front End "clunk" While Applying Brakes

Hey guys,

I got this really annoying problem with my "new to me" 06 Cobalt LT.

When I apply the brakes I hear and FEEL a heavy "clunk" or "clack". It happens every time I apply the brakes at a slow speed and I can feel it through the pedal so it is definitely something substantial. Any thoughts?

I've had the car up on jacks with the wheels off...everything looks ok, although I did notice that the struts seem to be rusting pretty bad, especially right at the top looking up from inside the wheel-well.
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post #2 of 11 (permalink) Old 05-27-2014, 02:50 AM
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Get new control arm bushings
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post #3 of 11 (permalink) Old 05-28-2014, 08:34 AM Thread Starter
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Thanks, you were totally right! I took the left control arm off, the rear bushing fell out.

I got a problem though. I tried taking the right control arm off, but the big bolt at the rear that holds the rear bushing in place is not coming out...it's just turning in place. Is there a nut at the top that I can hold with a wrench? (I haven't looked at it closely yet, didn't have time last night)
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post #4 of 11 (permalink) Old 05-28-2014, 09:00 AM
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You're not going to have a fun time, you need to drop the cradle.

2009 Cobalt LS XFE (F23) Victory Red
YYZ V.3 Springs, Koni shocks/struts, Powell XXX rear swaybar, Brembo brake swap, 5 lug conversion, Ion Redline wheels, SS/SC interior swap including power conversion, K&N intake, Trifecta tune, Ark Performance N-II catback, Ark shorty antenna, SS body kit, Powell F23 rotated mount, LNF rear mount, Powell CABs
Soon to come- EFR 6758 turbo kit and make Retro Headlights.
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post #5 of 11 (permalink) Old 05-28-2014, 10:01 AM Thread Starter
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holy f*ck.

These are the instructions, correct?
http://ww2.justanswer.com/uploads/GM...removal_05.pdf


Well I gotta do it. Will I need to brace the engine?

And what about raising and lowering the cradle, that looks hella heavy. Will I need a special jack to do that?

Any special tools?
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post #6 of 11 (permalink) Old 05-28-2014, 10:30 AM
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Read this, better information. Just take out the space and copy and paste.
http://www.cobalt ss.net/forums/suspension-67/powells-take-replacing-bad-control-arm-bushings-301627/

2009 Cobalt LS XFE (F23) Victory Red
YYZ V.3 Springs, Koni shocks/struts, Powell XXX rear swaybar, Brembo brake swap, 5 lug conversion, Ion Redline wheels, SS/SC interior swap including power conversion, K&N intake, Trifecta tune, Ark Performance N-II catback, Ark shorty antenna, SS body kit, Powell F23 rotated mount, LNF rear mount, Powell CABs
Soon to come- EFR 6758 turbo kit and make Retro Headlights.
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post #7 of 11 (permalink) Old 05-28-2014, 11:09 AM
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If you know a good mechanic he can weld the nut in place. Then the heat from the welding will break the bolt loose from the nut and you can remove it. If you have a welder and are good at it you can then do this yourself.

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post #8 of 11 (permalink) Old 05-28-2014, 01:54 PM Thread Starter
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Thanks guys. I'll check that link and we'll see how it goes :-)
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post #9 of 11 (permalink) Old 05-29-2014, 08:29 AM Thread Starter
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Success!!!! (well almost)

So I decided to tighten that bolt back up as tight as I could. I noticed that the CAB stopped turning with the bolt just as it was getting really tight. All I needed to do now was get a vice grips in there to stop it from turning the rest of the way out. Took me awhile but I eventually got one in there. It's about 1" out but I don't think it's coming out any more on its own (I think I pushed the nut up a bit when I was trying to loosen it before).

I think I can pull it out with a vice grips or whatever tonight.



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post #10 of 11 (permalink) Old 05-29-2014, 10:06 PM
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I'll be very surprised if you get it out with just vice grips.

2009 Cobalt LS XFE (F23) Victory Red
YYZ V.3 Springs, Koni shocks/struts, Powell XXX rear swaybar, Brembo brake swap, 5 lug conversion, Ion Redline wheels, SS/SC interior swap including power conversion, K&N intake, Trifecta tune, Ark Performance N-II catback, Ark shorty antenna, SS body kit, Powell F23 rotated mount, LNF rear mount, Powell CABs
Soon to come- EFR 6758 turbo kit and make Retro Headlights.
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