LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

brake light dash, bad master cylinder...READ

Old May 23, 2006 | 12:32 AM
  #1  
Dansean1's Avatar
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From: Northridge, CA
brake light dash, bad master cylinder...READ

Guys, need some help. I know this not exactly the right thread, but Im ina rush and hope you could help me out. Need car tomorrow.

In the last 3 weeks, I have had to at various times pump my brake pedal to stop adequately. My brake dash light comes on intermittently and one day I suspected I saw brake fluid leaking from the point where the master cylinder bolts to the brake booster. I also found I was quite low on fluid at that time.

I dont suspect a break in any line but do suspect the master cylinder has gone bad; Im not 100% sure. I bought a new cylinder but it requires me to transfer my old reservoir over- is that difficult to do? SEcondly, Im aware the brakes will need to be bled afterwards. Is there any harm in waiting a day or so since it is a 2 man job?

Any insight?
thanks
Old May 23, 2006 | 09:20 AM
  #2  
OBE1 95Z28's Avatar
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Joined: Dec 1969
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From: San Diego, CA
Re: brake light dash, bad master cylinder...READ

I replaced my master cylinder as it was weeping where it mated to the brake booster. Straight forward replacement. You will need to bench bleed the master cylinder before mounting it to the brake booster. You will also need to bleed your system before you use it as trapped air will compromise braking. Use a line wrench to disconnect the brake lines from your existing master cylinder so as not to round off the heads.
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