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How to Replace 98 GS300 Brake Master Cylnder Booster Unit

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Old 06-10-13, 12:15 PM
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KAJmapper
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I have one from an 02 for sale...pm for info
Old 03-10-14, 09:32 PM
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Bigtimmy
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what do you do with do you rebuild if so how much for one
Old 03-25-15, 04:41 PM
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Kefzel
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I recently upgraded my master cylinder to 02. My sensor from the old cylinder is bad and the connector for the new cylinder is different. I am looking for a pressure sensor for 98-00 gs300 or a conector for 02 sensor. Any help will be appreciated.
Old 03-05-17, 02:04 PM
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RayRays400
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Hey guys. Do you know if a failed master pump would cause these symptoms... the dashboard has all the lights to the abs system lit up. BRAKE VSC and others I can't remember right now. The car had been sitting not being used for over a year. I jumped it and all seems ok but brake is hard to push and has a continuous beep also. Pretty sure the battery is low on charge. And forgot to mention it's a 98 GS400. Can you guys provide some feedback.
Old 04-22-17, 07:59 AM
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Ahmad87
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Did you bleed or flush system first or was there any pressure that needed to be released before removing? I'm about to replace mine today and I want to make sure.
Old 06-06-17, 11:56 AM
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tiguy99
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Originally Posted by Ahmad87
Did you bleed or flush system first or was there any pressure that needed to be released before removing? I'm about to replace mine today and I want to make sure.
Hey Ahmad,

How did it go?
​​​​​​​Need to do this soon myself
Old 07-25-17, 01:38 PM
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Sean628
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Old 04-02-18, 07:16 AM
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iamhippo
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Originally Posted by KAJmapper
if you do end up replacing your master cylinder/brake booster components can I buy the old broken ones from you ?

Please pm me
I'm looking to replace my brake master cylinder soon, are you still interested in buying the used ones? Please let me know thanks
Old 04-02-18, 02:18 PM
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sakataj
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Originally Posted by iamhippo
I'm looking to replace my brake master cylinder soon, are you still interested in buying the used ones? Please let me know thanks
im sure 5 years later he probably isnt
Old 04-09-18, 07:54 AM
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iamhippo
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Originally Posted by sakataj
im sure 5 years later he probably isnt
Yes I've notice that, it doesn't hurt to ask just in case he rebuilds them and resell the units. Just the same when you ask people's suggestions on a fix and the posts are a few years old for suggestions. Just saying.
Old 04-10-18, 09:05 PM
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InkedUpEB
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Originally Posted by iamhippo
I'm looking to replace my brake master cylinder soon, are you still interested in buying the used ones? Please let me know thanks
anything wrong with yours?
Old 06-17-19, 01:29 PM
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cheapass
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pretty sure both my 01 lx470 and my 98 gs400 are going to need some replacements...is there any way to retrofit something that doesn't have a giant A.I genital in the way of me braking safely?
Old 06-18-19, 11:06 AM
  #28  
captainva
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The Avalon booster has been swapped into the 2GS which gets rid of ABS completely from my understanding as its built into the unit. I believe that theres a DIY on that.
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