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Brake system issue

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Old Dec 11, 2006 | 12:15 PM
  #1  
3rdelement's Avatar
3rdelement
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From: Colorado
Default Brake system issue

ok so my brake pedal isnt firm anymore. i had the brakes blead and still it goes to the floor. So i switched out the master cylander and it was better but still went to the floor very easily. And once stopped the vehicle would slowly start creeping forward. so i thought somewhere i had missed a bubble in the system, took it to my trusted shop and they blead the lines. it was a little better but now its the same problem. Im thinking i got a bad master cylander. anyone have an idea?
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Old Dec 14, 2006 | 10:01 AM
  #2  
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lex pilot
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From: WI
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If it's the same with a new master cylinder odds are it is something else.
Not sure on the system, but there may be a check valve in the ABS pump that is letting fluid by. If it has a piece of dirt under it you may clear it by activating the ABS. Find some ice or snow (should be easy in CO) make it skid a while and the pulsing should blow any crap from under a check valve.
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Old Dec 14, 2006 | 10:15 AM
  #3  
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3rdelement
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well it was the master cylander. brakes are solid now. took a couple sessions of bleeding to get it perfect but im happy with it. thanks for the idea though.
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Old Dec 14, 2006 | 12:56 PM
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From: AL
Cool

Yay! If you want race car brakes (I don't) you could always try swapping in an MR2 master cylinder & vacuum assist too. Their pedal isn't as progressive as ours.
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Old Dec 14, 2006 | 01:04 PM
  #5  
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3rdelement
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i just like having a firm pedal.
so lets see

highlander Alernator
mr2 limited slip diff
mr2 master cylander with vac assist
front strut bar from solara
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