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Rear Brake Pad Question

This is a discussion on Rear Brake Pad Question within the General Help forums, part of the LSx Technical Help Section category; This is on a friends 2K low mileage Z28. All of a sudden his pedal feels a little spongy, bought ...

  1. #1
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    Rear Brake Pad Question

    This is on a friends 2K low mileage Z28. All of a sudden his pedal feels a little spongy, bought new pads cause he has over 1/4" space between the pads and rotors thinking they were worn, but the ones on there show hardly any wear at all (same on both rears). After hitting the brake a couple times the pads compress, then slowly release leaving the gap. Car has ASR and braided lines on it. No leaks and fluid level is correct. Fronts are fine. Any ideas what could be wrong? Only thing I can think of is trying to bleed them.

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    CAM mmmmmm... Toes's Avatar
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    WHITE
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    Air is in the system it needs to be bleed

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    does the idle go up when you step on the brake?

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    Didn't look for/notice that, I'll ask him tomorrow AM and post.

  5. #5
    Just me Y2KPewterSS's Avatar
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    Pewter metallic
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    Quote Originally Posted by Toes View Post
    Air is in the system it needs to be bleed
    Second this
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    Senior Member mrr23's Avatar
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    do a fluid flush. without the system being opened, air won't get in. but, the fluid is old. most likely a dark color, almost black dirt. brake fluid is a light brown almost see through. kinda like weak tea.

    only other thing would be the master cylinder going bad.

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    2002 T/A WS.6

    Quote Originally Posted by mrr23 View Post
    do a fluid flush. without the system being opened, air won't get in. but, the fluid is old. most likely a dark color, almost black dirt. brake fluid is a light brown almost see through. kinda like weak tea.

    only other thing would be the master cylinder going bad.
    i second that. if you dont get a jumpy idle when stepping on the brake the fluid maybe bad and could have possibly rotted the cups in the master.

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