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New Brake Master Cylinder won't work!

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Old 08-17-09, 02:05 PM
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Char'babi
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Unhappy New Brake Master Cylinder won't work!

I own a 98 GS 400, a week ago while I was driving the E brake, ABS, VSC and VSC off lights all came on accompanied by a buzzer noise. I had the car towed to a Lexus dealer for a diagnostic, I was told the Brake Actuator failed and that I needed a new Brake Master Cylinder. I towed the car to another auto shop to have the work complete. I ordered a brand new OEM Brake Master Cylinder and had it put on....wha'lah you say....WRONG!

The new Brake Master Cylinder seemed to solve the problem until the very next day. I was driving and BOOM, all the lights and buzzer noise came on AGAIN! I towed the car back to the shop and currently awaiting a call from them. Can anyone help me as to what could've gone wrong?


1998 GS 400
172k Miles
Great Condition...other than the braking system
No accidents
new ball joints 2 years ago
new front and rear brakes
Old 08-17-09, 05:12 PM
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rgarjr
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could be wiring or computer related.

Last edited by rgarjr; 08-17-09 at 10:29 PM.
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