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05-07-2002, 11:35 AM
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#1 |
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Registered User
Join Date: Sep 2001
Location: CA
Posts: 15
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brakes
I have a 77 blazer 4x4 w/ disc brakes and lately when I press on the brake pedal it makes a hissing noise and if I tap the brakes the pedal will go down a little bit on its own. I'm thinking maybe I just need to check the brake fluid level but if that isn't the problem what could be causing this?
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05-07-2002, 10:06 PM
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#2 |
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Registered User
 
Join Date: Feb 2000
Location: Maquoketa, Ia/ Orr, Mn
Posts: 2,963
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The gasket between the cover and the master cylinder might have a pin hole in it that is letting air into the system. If that isn't it then the brake lines running from the proportioning valve could be leaking too.
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'51 South Bend Model "9A" '56 Chevy 3600 NAPCO '74 Chevy Cheyenne Super K20-restored on 37's '72 GMC Sierra Custom K2500- in progress '08 GMC Envoy Denali '12 GMC Sierra 2500HD Denali '17 GMC Yukon XL VCCA member #58596 http://www.nohrco.com |
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05-09-2002, 10:38 AM
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#3 |
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Registered User
Join Date: May 2002
Location: Olathe, Kansas
Posts: 5
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Definitely air in the system just completed changing a bad wheel cylinder in my camaro with the hissing when you pushed the pedal.
------------------ 79 chevy blazer frame with 79 cab cut down 77 stepside bed 38.5 boggers.
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79 chevy blazer frame with 79 cab cut down 77 stepside bed 38.5 boggers. |
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