Noise while braking??? - Chicagoland Sportbikes
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post #1 of 12 (permalink) Old 08-05-2011, 11:39 AM Thread Starter
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Noise while braking???

2006 Pontiac G6, while the brakes are applied, a noise is heard as if the brakes were skipping and reengaging. Kind of like when ABS kicks in on hard braking, but the car does not have ABS and this is heard at all times while applying the brake. Not a typical squeal or grinding one would associate with brakes.

Anyone have any ideas what that could be associated with or what the problem could be?

It is my wife's car, so I told her already to turn up the radio so she does not hear it anymore and to limit the need for using the brake, but probably should come up with a better solution.

Thanks in advance guys.

Greg

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post #2 of 12 (permalink) Old 08-05-2011, 12:37 PM
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Greg, I hate to sound like an ass, but are you sure it doesn't have abs? Turn the key forward but do not start it. Does an abs light pop on?
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post #3 of 12 (permalink) Old 08-05-2011, 12:57 PM
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Warped rotors?

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post #4 of 12 (permalink) Old 08-05-2011, 01:04 PM
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Only other thing (and GM is well known for it), Are lower control arm bushings going bad. We had a cavalier a week in with this problem. To diagnose put the car in the air and check if there is any play.
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post #5 of 12 (permalink) Old 08-05-2011, 01:04 PM
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Hard to imagine a G6 without ABS.


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post #6 of 12 (permalink) Old 08-05-2011, 01:16 PM Thread Starter
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No ABS for sure and rotors are less than a year old.

Greg

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post #7 of 12 (permalink) Old 08-05-2011, 01:21 PM
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Get a wheel hot and hit a puddle. Presto, you can fuck up a rotor quick
Also check out the stabilizer pins. A car can make all sorts of odd sound when it has a broken stab. pi.
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post #8 of 12 (permalink) Old 08-05-2011, 01:24 PM
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Quote:
Originally Posted by gsd656 View Post
No ABS for sure and rotors are less than a year old.
OEM or brake shop quality?

I've heard the quality of cheap non-OEM's has tanked, this is why I pose the question.

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post #9 of 12 (permalink) Old 08-05-2011, 01:30 PM Thread Starter
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OEM done by the dealership. Took it back to them, we'll see what they come up with.

Problem is that it is hard to distinguish the sound from typical road noise, but once you hear it, it drives you nuts.

Greg

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post #10 of 12 (permalink) Old 08-05-2011, 01:30 PM
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If they are Autozone Duralast rotors I am on my 3rd pair in 4 years. I make sure to not rinse them when hot and I lift my feet over any incoming bumps. They are garbage.

Edit-nvm you just posted
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post #11 of 12 (permalink) Old 08-05-2011, 03:42 PM Thread Starter
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Well, the dealership did not find anything wrong with the braking system and the rotors and pads are like new. A piece of mind at least. Thanks for all your input.

Greg

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post #12 of 12 (permalink) Old 08-05-2011, 03:50 PM
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if those are 4 wheel discs, the rears tend to rust up(thin crappy rotors) and pulsate while stopping.
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