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post #1 of 11 (permalink) Old 10-15-2011, 01:49 PM Thread Starter
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2008 Cobalt Making Loud Noise when Applying the Brakes at Higher Speeds

I have a 2008 Chevrolet Cobalt, 55,000 miles on it. When braking at around 55 i feel the brakes pulsating....making a clunking noise on the driver side...i checked the brake pads and they seemed fine...possible rotor issue???

Please HELP!!!!!

Thank you and GOD BLESS!!
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post #2 of 11 (permalink) Old 10-15-2011, 02:48 PM
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Maybe your caliper is loose.
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post #3 of 11 (permalink) Old 10-15-2011, 02:50 PM Thread Starter
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when i pulled both wheels off i didnt notice anything out of the norm, all seemed tight...
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post #4 of 11 (permalink) Old 10-15-2011, 05:47 PM
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Retork caliper bolts at 17ft/lbs. Loose caliper will also be noisy in bumps. Or maybe your rotor is warped.
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post #5 of 11 (permalink) Old 10-15-2011, 05:48 PM Thread Starter
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awesome i will def check that out...thanks for the heads up on
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post #6 of 11 (permalink) Old 10-15-2011, 06:39 PM
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I agree with the rotor being warped... very common for the stock rotors on the cobalts.

2009 Imperial Blue Metallic Cobalt SS/TC Sedan - "Stock":
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post #7 of 11 (permalink) Old 10-15-2011, 06:40 PM Thread Starter
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yeah im probably just going to get 2 new rotors and brakes....can get it all local here for $100.00
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post #8 of 11 (permalink) Old 10-15-2011, 07:44 PM
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If you have mag wheels get good pads like. Adaptive One to minimize brake dust cling. Also to avoid warpage make sure you use a torque ratchet to tighten lug nuts. 100ft/lbs with alloy wheels or 110 for steel.

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post #9 of 11 (permalink) Old 10-15-2011, 08:15 PM
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the warped discs is more than likely what is wrong with your balt, Ive got 52K on my cobalt and my discs are slightly warped, only because Ive stopped from 110 to 0 in a shortish distance

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post #10 of 11 (permalink) Old 10-16-2011, 01:12 AM
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I hear all sorts of storys about the rotor warping on our cars, but I have just under 65000 miles on my car and still have the original rotors, and they are still straight as an arrow. However they are not to far from being worn out and having to be replaced. Maybe I just got lucky with mine.

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