need brake help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 09-29-2006, 06:42 PM   #1
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Default need brake help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

ok when im driving holding my foot on the petal to slow down the pedal goes all the way to the floor.. but if i take my foot off brake and hit agian then i have preasure...

i checked fluid. was full but the lil rubber gasket thingie on the cap doenst look like it should be on my car... its like 2 times bigger then the cap.... if i member corectly i think the master cylnder is goin??? anyhelp??? thanks all....
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Old 09-29-2006, 06:44 PM   #2
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sounds like you have a leaky master cylinder seal
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Old 10-01-2006, 02:36 PM   #3
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slow to get back to ya but ya 100$ and about 1/2 hr latter and it all works great.... was the master cylinder

hardest part was trying to get the hard lines stright so i could tighten them with out strippin the thread...
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1993, 1996, 93, 96, bonneville, brakes, gp, grand prix, leak, master cylinder, model unknown, pontiac, sle

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