Master cylinder. .. 99' Bonneville

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, Olds 98 91-96, Buick Lesabres and Park Avenue 91-96. Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.
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wpbrink
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Year and Trim: 1998 pontiac bonneville se

Master cylinder. .. 99' Bonneville

Post by wpbrink »

Has anyone replaced the master cylinder? If you have could you offer some advice on what to do or pictures?
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96 SSEi
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Re: Master cylinder. .. 99' Bonneville

Post by 96 SSEi »

what is the issue with the master?
poverty forces one to do unorthodox things

2000 SSEi
past rides:
1996 SSEi
1992 GTP
1987 Grand Am
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wpbrink
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Re: Master cylinder. .. 99' Bonneville

Post by wpbrink »

Leaking
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wpbrink
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Re: Master cylinder. .. 99' Bonneville

Post by wpbrink »

The master cylinder is leaking and I will be replacing it shortly.... Brake pedal goes to the ground. Do I need to bleed the ABS system also and if so I have no idea what to do. ..
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95naSTA
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Re: Master cylinder. .. 99' Bonneville

Post by 95naSTA »

I replaced all of my lines without doing any special ABS bleeding procedures.
Image
95 SLE... a keeper. 241k miles. Low and Slow.
97 BMW 528i
98 Infiniti vq35'd i30: 13.3@104mph, 30MPG Hwy (RIP)
02 Jag X-type
03 BMW M5
05 Chevy Cobalt LS
07 Infiniti G35s 6MT (Sold)
07 Ducati Monster S2R 800 with DS1000 swap
83 Yamaha IT175K
72 Yamaha DS7: '74 RD250 swap, JL chambers

Info on dropping a 92-99: Here.
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wpbrink
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Posts: 75
Joined: Mon Aug 11, 2014 2:40 am
Year and Trim: 1998 pontiac bonneville se

Re: Master cylinder. .. 99' Bonneville

Post by wpbrink »

Do you bleed the system with the car running or just keyed on?
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95naSTA
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Re: Master cylinder. .. 99' Bonneville

Post by 95naSTA »

I just gravity bled it, then did a 2 person bleed by pumping the brakes. I don't even remember having to turn the car on.

You're supposed to bench bleed the master before you install but I didn't do that either.
Image
95 SLE... a keeper. 241k miles. Low and Slow.
97 BMW 528i
98 Infiniti vq35'd i30: 13.3@104mph, 30MPG Hwy (RIP)
02 Jag X-type
03 BMW M5
05 Chevy Cobalt LS
07 Infiniti G35s 6MT (Sold)
07 Ducati Monster S2R 800 with DS1000 swap
83 Yamaha IT175K
72 Yamaha DS7: '74 RD250 swap, JL chambers

Info on dropping a 92-99: Here.
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