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#1
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Advanced Member ![]() ![]() Group: Advanced Members Posts: 620 Joined: 24-December 03 From: Chester, VA Member No.: 22 ![]() |
I'll keep this short. My '87 4Runner's brake pedal goes to the floor, but when pumped once gives me a good pedal. In the past, I adjusted the e-brake and the pedal came back. In the past it never went so low that I needed to pump it. I have adjusted the e-brakes and still have a low pedal. I'm thinking master cylinder, but hate throwing money at the darn thing.
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#2
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Experienced Member ![]() ![]() ![]() Group: Advanced Members Posts: 1,038 Joined: 29-December 03 From: Texas, USA Member No.: 62 ![]() |
I think your instincts are correct. Sounds like master to me.
Costas cars and such... |
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#3
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Member ![]() Group: Advanced Members Posts: 60 Joined: 11-November 07 From: Baltimore, Maryland Member No.: 2,000 ![]() |
Sounds like the flux capacitor is running out of juice ... but try the master cylinder first
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#4
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Advanced Member ![]() ![]() Group: Advanced Members Posts: 620 Joined: 24-December 03 From: Chester, VA Member No.: 22 ![]() |
I was all but certain it was the master cylinder. I already replaced the flux-cap, and the waddle washers, so I didn't think it was those.
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#5
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Collo Rosso ![]() ![]() ![]() Group: Advanced Members Posts: 1,220 Joined: 3-August 05 From: San Antonio, TX Member No.: 839 ![]() |
Got fluid?
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#6
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FRRAX Owner/Admin ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Group: Admin Posts: 15,432 Joined: 13-February 04 From: Ohio Member No.: 196 ![]() |
Is the brake booster full of fluid? Sounds like a good chance the master has failed and many times they will fill the booster with brake fluid (not always, but I've seen more than a few).
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#7
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Advanced Member ![]() ![]() Group: Advanced Members Posts: 620 Joined: 24-December 03 From: Chester, VA Member No.: 22 ![]() |
It never really lost any fluid to speak of. I'm pulling the cylinder now. There was a little rust where the mc met the bottom of the booster, so I assume it was leaking a little around the seal. The booster was rebuilt about 6 years ago.
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