GX - 1st Gen (2004-2009) Discussion topics related to the 2003 -2009 GX470 models

New GX 470 owner

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Old 12-01-13, 05:48 AM
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nickd818
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Default New GX 470 owner

I recently bought a 2004 GX 470 with 89k miles. My dad did the 90k service like a champ and it runs very smoothly. However, I have recently noticed what I believe to be the brake master cylinder, which on a regular basis, has to keep compressing for about 4-6 seconds even while driving. We filled the fluid and it seemed to stop as I was pumping the brakes to test. But the next day it started again and the fluid is still at MAX level. Thoughts?
Old 12-01-13, 06:16 AM
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Crispy3M
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Take a read here...

https://www.clublexus.com/forums/gx-...-expected.html
Old 12-01-13, 07:47 AM
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Booyah
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Yep happened to me.,. you will be needing a whole unit just like me, and dont wait till it dies as you will have very LITTLE brakes--very dangerous at the wrong time trust me. Get it replaced now.,
Old 12-01-13, 08:04 AM
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Johnny Rad
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Congrats on your new GX. Your Dad's mech skills sound like an awesome hook-up.

Post up pics!
Old 12-01-13, 05:32 PM
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nickd818
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crap that sucks :-( I had it looked over from a professional and all was good except transfer case leak which I know is common and easy fix. Seems like things are popping up now. I looked on the internet and the master cylinder is around $1200?

Thanks, my dad took the whole thing apart and back together only looking at directions from the parts box once. Saved me lot of $$.
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