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Cadillac STS/STS-V: Brake Issues
Recently, the problem was developing again & I was planning to take the car back in, when the vacuum booster failed, eliminating my usual procrastination. While repairing the booster, the dealer informed me that the reason the brakes were pulsating was because they were "warped", explaining that they all do that under normal braking.
I have never had this happen before & wonder if this is "normal" for this year model. My 1994 STS never had that problem.