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brake pulsation after brake fluid flush

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Old 03-25-03, 08:36 PM
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Question brake pulsation after brake fluid flush

I flushed the brake fluid and immediately after that, I am noticing a pulsation (similar to when your rotors are warpped) when I step on the brake 1/2 way at highway speed. I am pretty sure this is not warpped rotors as this problem didn't surface until the fluid change.

Any idea on what I should look for??
Old 03-26-03, 02:20 PM
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anyone?
Old 03-27-03, 09:07 AM
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Air in the lines?
Old 03-27-03, 11:05 AM
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Probably is "warped" rotors* You feel the pulsation more now b/k the OLD fluid was compressible enough to absorb the pulsations and the NEW fluid transmits them to the pedal.

* Rotors don't "WARP" per-se they develop thickness variations due to brake pad deposits and hardness variations caused by improper cool down after hard use.

Last edited by maxpesce; 03-27-03 at 11:11 AM.
Old 03-27-03, 12:14 PM
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Thanks for the feedback. I loosened the lugnuts a little and the pulsation seems to be less noticeable. I'll drive around a little more to see it's completely gone away.
Old 03-27-03, 11:20 PM
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The lug nut worked!!
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