LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

What happens when rotors go bad?

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Old 12-07-06, 06:37 PM
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deanbrown
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Default What happens when rotors go bad?

My braking feels rough - kind of a vibration that feels like the same frequency as the wheels are spinning. Only bad when hard stopping from speed, around 50-70 mph.

I've never had bad rotors before, is this a typical effect? The pads are good. The rotors are original at 170K miles and nearly at their wear limit.

THX!

Dean

ps Whats a decent make of rotors? Vented or not?
Old 12-08-06, 02:11 AM
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GRAND_LS 4
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They wrap.

Of course, you have to get vented... but if your asking about drilled or slotted, thats a different topic.
Old 12-08-06, 03:18 AM
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PureDrifter
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easy way to tell which rotors are warped:

vibration felt primarily through steering wheel = Warped Front rotors

vibration felt through floor and seat = Warped Rear rotors

and good oem replacement is Brembo, which is cheaply available on www.tirerack.com
Old 12-08-06, 10:26 PM
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deanbrown
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He he, funny!

Thanks all for the help and tips.

Cheers,

Dean
Old 12-18-06, 01:14 PM
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Lexs400
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original rotors at 170K. r u the original owner ? that's quite a lot of mileage from the rotors. u can buy original toyota or just go to tirerack.com and get brembo. they're half the price and equally good as oem.
Old 12-18-06, 01:22 PM
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sdbrandon
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Originally Posted by Lexs400
original rotors at 170K. r u the original owner ? that's quite a lot of mileage from the rotors. u can buy original toyota or just go to tirerack.com and get brembo. they're half the price and equally good as oem.
I never heard of rotors lasting that long on any car. Maybe 80k miles tops.

It sounds like the car has been driven mostly highway miles or they were replaced earlier and the OP does not remember.
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