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Brake pedal noise

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Old 06-20-14, 08:52 AM   #1
chrisliuw
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Default Brake pedal noise

My new GX460 has 120 miles now, and starting today, I heard noise when pushing the brake pedal. After get the parking lot, I turned off engine, and used hand to push the brake pedal, I can hear same noise, which like a air or gas squeeze out. Seems not big deal to me, just like to see do you GX460 owner have similar thing or I need to to dealer again
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Old 06-20-14, 10:01 AM   #2
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I hear the same thing from our 2011 which we bought used. We also have the creep at stop lights. I just had to replace a brake booster in our other car and I have been wondering if this is the same issue. I will be interested to see what happens here.

Have tried to take it back to the dealer and see if all the other new ones make the same noise? My Chrysler has never made this noise.
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Old 06-20-14, 10:34 AM   #3
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Mine makes the squish noise as well. I believe it is normal on the GX. That said, at first it drove me nuts as I think it sounds like something is wrong. I'm used to it now.
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Old 06-20-14, 11:10 AM   #4
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standard wet shoe squish noise with brake pedal
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Old 06-20-14, 12:23 PM   #5
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It's normal, I've had the same noise in my 2010 as well as my 2014...
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Old 06-21-14, 07:45 AM   #6
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Same results. My 2010 GX did it. My new 2014 GX does it. A friend's 2012 does it...etc.

Interestingly, like you, it didn't do it right off the lot but started a few hundred miles in. Whenever I step on the brake pedal it goes "sshhwooshhh". I was pretty excited when the 2014 didn't do it for the first couple weeks but then it came back - oh well.
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Old 06-21-14, 12:39 PM   #7
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on my 2014, it's easier to hold it at a stop light than on my 2010. They have improved the brake pedal feel on the 2014.
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Old 06-24-14, 09:45 AM   #8
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It is normal for all GX460s, as well as for 5th gen 4runners. It is part of the brake assist system. If you quickly press the break pedal, in a panic brake situation, it will activate this system and stop you quickly. The system works pretty well.

The sound is the fluid flowing across a tuned orifice with sensors that will sense pressure drop depending on the acceleration of the depression of the pedal.
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Old 06-24-14, 03:07 PM   #9
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Yep totally normal. My 4Runner had the same sound as well.
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Old 06-24-14, 03:07 PM
 
 
 
 
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