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vibrations after new tires/brake pads

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Old 05-19-2010, 01:44 PM
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foshau23
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Default vibrations after new tires/brake pads

i just recently bought an 07 enthusiast. the rear tires were nearly bald and needed replacing as did the brake pads..so i went to mavis and got some bridgestone potenza pole positions installed in the rear as well as rear brake pads. since then, i've been experiencing vibrations when braking. i didn't notice these vibrations before and now it's pretty apparent. they told me warped rotors but i find it hard to believe my rotors magically warped the same day mavis was treating my car..any ideas?
Old 05-19-2010, 01:55 PM
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GeauxLadyZ
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Although the symptoms match warped rotors, i seriously highly doubt you warped them...

Did they balance the wheels? Do you have new weights in the wheel or are the old weights still on?
Old 05-19-2010, 01:57 PM
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DavesZ#3
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Did you/they bed in the brakes properly?
Old 05-19-2010, 02:00 PM
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foshau23
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i assumed they balanced the wheels, and i'm not sure about the weights..is there any way for me to check myself?
Old 05-19-2010, 02:01 PM
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Originally Posted by DavesZ#3
Did you/they bed in the brakes properly?
^ But no bed-in wouldn't cause vibrations, just glazed pads/rotors...right?
Old 05-19-2010, 02:02 PM
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John Bronze
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Originally Posted by foshau23
i assumed they balanced the wheels, and i'm not sure about the weights..is there any way for me to check myself?
lol Look inside the wheel.
Old 05-19-2010, 02:21 PM
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350junkie
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Originally Posted by GeauxLadyZ
^ But no bed-in wouldn't cause vibrations, just glazed pads/rotors...right
if you don't bed in the pads right the pads won't leave an even residue across the surface of the rotor and will cause the shake under braking due to the different friction co-efficient of the two different materials (rotor/pad residue)
Old 05-19-2010, 02:26 PM
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foshau23
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dont hate on a noob lol..the weights were definitely replaced though
Old 05-19-2010, 03:33 PM
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New pads caused the vibration? Interesting.
Old 05-19-2010, 04:30 PM
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foshau23
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it's actually not that bad of a vibration after i went out and drove it again, but i still don't believe them that i have a warped rotor.
Old 05-19-2010, 04:54 PM
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Doubt it. You would have had to seriously work your brakes to get them that hot.
Old 05-19-2010, 05:24 PM
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DavesZ#3
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They may not be warped badly, but a simple resurfacing of the rotors wouldn't hurt to guarantee they are perfectly smooth.
Old 05-19-2010, 07:12 PM
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notFSTenuff
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should stop if its the brakes they have a break in period so just break longer when you going to stop, like start earlier.
Old 05-20-2010, 05:35 AM
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350junkie
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Originally Posted by notFSTenuff
should stop if its the brakes they have a break in period so just break longer when you going to stop, like start earlier.


How? You had it right the first two times, but managed to have your brain take a dump on the third attempt.
Old 05-20-2010, 04:42 PM
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foshau23
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that could be it because the vibrations seem to be fading a bit
Old 05-26-2010, 06:03 PM
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foshau23
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vibrations definitely aren't fading..time to get new rotors or have them checked out by someone else and see what they think
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