1987 Honda Civic brakes

Hi there,

Disconnect the booster vacuum supply and block hose, is the noise still there, if not you have a faulty booster, a small vacuum hose off will not affect the booster, operation.

Mark (mhpautos)

[quote:38a6113cad="lbryant1965"]Brakes problem
1987 Honda Civic 6 cyl Wheel Drive Type unknown Automatic 300000 miles
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i have replaced the brake MasterCylinder + brake booster and I have pedal but no brake. I hear a hissing noise of air coming out from under dash..Will the vacuum hoses not being properly reconnected cause this?[/quote:38a6113cad]

Hello !!

That noise its a vacuum leak..

Did you adjusted the freeplay on the master cylinder/booster?
How about the freeplay on the pedal?

let me know...

[quote:ccba6d606b="mhpautos"]Hi there,

Disconnect the booster vacuum supply and block hose, is the noise still there, if not you have a faulty booster, a small vacuum hose off will not affect the booster, operation.

Mark (mhpautos)[/quote:ccba6d606b]

[quote:813314b7ef="fisherman"][quote:813314b7ef="lbryant1965"]Brakes problem
1987 Honda Civic 6 cyl Wheel Drive Type unknown Automatic 300000 miles
----------------------------------------------------------------
i have replaced the brake MasterCylinder + brake booster and I have pedal but no brake. I hear a hissing noise of air coming out from under dash..Will the vacuum hoses not being properly reconnected cause this?[/quote:813314b7ef]

Hello !!

That noise its a vacuum leak..

Did you adjusted the freeplay on the master cylinder/booster?
How about the freeplay on the pedal?

let me know...[/quote:813314b7ef]