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Ok i just bought a 93 si with a cursed b18b and GSR trans.
The car drives great but the brake pedal doesnt seem to want to hold any pressure. I am not really sure what this means.

As alway help is appriciated and rep'd

Thanks
 

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no you dont need stainless lines....

bleed the brakes, might as well get some decent fluid while your at it. then i would check for leaks at the lines
 

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MAIN ONE IZ A CIVCSI
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no you dont need stainless lines....

bleed the brakes, might as well get some decent fluid while your at it. then i would check for leaks at the lines
x2 also clean the lil screen in the m/cyl. bleed each side till fluid comes threw clear(color of fluid you bought). Make sure you get the big bottle of brake fluid.
 

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no you dont need stainless lines....

bleed the brakes, might as well get some decent fluid while your at it. then i would check for leaks at the lines
x3..do this and maybe open your calipers and compress the pistons..i've done that on cars where the pedal sucked as well as bleeding the lines and it helps....the 93 si's have rear discs?
 

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I'm just saying, if he bleeds the brakes and discovers some dry rot or cracked lines, might as well replace them with stainless. Makes a huge difference in pedal feel.
 

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I have the same issue...
I'll be on a slight hill..holding my brake...it keeps pushing down..(to keep me stopped)
then before you know it..its at the floor...

great fluid,new brakes,new rotors, brakes are great

I never have to fill my reservoir...been over a year or so..

could be need to bleed brakes...but its a good question
 

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Best way to bleed brakes is to take the m/c res cap off and pump the brakes. The air will purge out of the lines with a good amount of pumps unill the peddle is alittle resistent. Reinstall the cap and do MOC ( Mainanance Operation Check ). Trust me it will work I have done it on every brake change and success.
 

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Best way to bleed brakes is to take the m/c res cap off and pump the brakes. The air will purge out of the lines with a good amount of pumps unill the peddle is alittle resistent. Reinstall the cap and do MOC ( Mainanance Operation Check ). Trust me it will work I have done it on every brake change and success.
u don't bleed at the brake nipples?

:werd:
 

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Classic Man
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I have the same issue...
I'll be on a slight hill..holding my brake...it keeps pushing down..(to keep me stopped)
then before you know it..its at the floor...

great fluid,new brakes,new rotors, brakes are great

I never have to fill my reservoir...been over a year or so..

could be need to bleed brakes...but its a good question

failing a bleed, it is your MC for sure. i had the EXACT same issue. got a used MC for $10 and made sure when i bench bleed/bleed it i didnt bottom it out
(if you can get a new one for decently cheap its a way better idea)
 

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as already stated:
bleed brakes thoroughly.

if that doesn't improve the situation, look into replacing your master cylinder. It's just a piston that builds compression. The internal seals eventually fail on all master cylinders (rubber) and you lose *compression* like having worn out piston rings.
 
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