pwrusr

iTrader: (10)

UPDATE
Another update. Changed out the rear rotors and pads. Used Centric rotors w/ akebono pads. It is now smooth as butter. If you feel vibration in your *** its the rear haha. steering wheel front. Thanks everyone for helping out. I am so happy it finally got solved!


UPDATE

So I changed out the front pads with AKEBONO (heard great reviews) and front OEM rotors. I still have the vibration problem. A little bit about the car: 2007 GS350, 30,000 miles, no accidents or anything. HELP!! This is bugging me. Could it be the rears?





hey I wonder if anyone can help me out. I have some slight brake vibration when braking at speeds of ~50+. New front pads, just resurfaced rotors, just got new tires, balanced and all. And I'm still getting the vibrations. Any help is appreciated!

Boron

Brake discs not true.
Ask who done them to check them.
That or you've warped them if you sat with your foot on the brake pedal after legthy or hard braking.

pwrusr

iTrader: (10)

I watched them when they were checking the life of the rotor and when they were resurfacing them. Any possibilities it could be the rears? 7mm pad left on the rears. Car only has 27000 miles

mrbulk

Hey! I have the same thing! And MY rotors were turned down three thousand miles ago. Hmmm...

mrbulk

You may be right, might be the rears...

pwrusr

iTrader: (10)

maybe I'll have those turned too damnit!!!!! But when I took the car to Lexus they said it was the fronts. But now still making that noise. Any brake specialists out there?!

tbilisi79

99 percent of time it's the front rotors. You can cut them but if the are warped too much it will not fully eliminate the problem. Not always that is. Especially with big rotors.
I'm afraid changing the rotor might be the only way.
Worn out suspension components will amplify the problem. But with your mileage I doubt that's the cause.

gridlock13

iTrader: (1)

could it be an improper brake pad bedding? when i replaced my pads i read that if break-in isn't done correctly it could cause an uneven transfer of pad material on the rotor surface which will make the car feel like it has warped rotors.

http://www.tirerack.com/brakes/tech/...currentpage=80

mr3gs300

Maybe the brakes were installed improperly

Boron

If the rears weren't changed, and no issue before now, highly unlikley to be them unless pads or disc are shot.
As above, did you bed the pads in properly (many a "how to" on Google)?
Do you tend to put the transmission into neutral or park when stopped, or sit with your foot welded to the brake pedal?
If the latter, then there's a good chance you've warped the discs.
But before presuming the worst, find somewhere quiet(ish) and perform a number of high speed (60-70 mph) heavy braking slowdowns (10 mph) then drive steadily for a while to let them cool fully.
Any deposits causing the problem should be gone.
See how that goes before committing to further skimming or replacing the discs.

pwrusr

iTrader: (10)

yeah rotors are fairly new, just got them put on and havent done a lot of driving. I will try and bed them tonight and let you all know how it is. It was vibrating before I had the rotors resurfaced and before I had new tires put on.

pwrusr

iTrader: (10)

bedded in brakes and still get a slight vibration though it is not as bad as before. The front pads are brand new, should i just change out the front rotors?

Lex41510

yeah probably the front rotors, I have the same problem, and need to replace them asap

mrbulk

Are rotors covered under warranty? I know the pads are not (wear item) but the rotors warping within warranty have got to be a factory issue...

Boron

Discs are a consumable item too, so no warranty unless you could prove they were in some way defective.
Bottom line, don't sit with your foot on the pedal after long and/or hard braking.
Best to judge speed to coast to lights or put tranny into neutral on flat ground.
You also don't burn the retina out of the driver behind you with your brake lights on full blinding mode!