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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: 123 pugsy on April 22, 2006, 11:11:00 am

Title: Power Brakes
Post by: 123 pugsy on April 22, 2006, 11:11:00 am

Took the truck for a drive.Booster gives a whoosh sound and power assist doesn't seem to be working.Is it possible to install this wrong?The brakes were working before I ripped the truck apart.

Title: Re: Power Brakes
Post by: VileZambonie on April 22, 2006, 11:18:00 am

After you shut off the truck does it maintain vacuum after you pull of the check valve?

Title: Re: Power Brakes
Post by: 123 pugsy on April 22, 2006, 01:07:00 pm

Yes.Sorta.Just checked with mityvac.Leaking slightly around the grommet only.Step on the brake pedal and vac is released immediately.

Edited by: 123 pugsy at: 4/22/06 12:34 pm

Title: Re: Power Brakes
Post by: VileZambonie on April 22, 2006, 06:43:00 pm

Then you have a bad booster

Title: Re: Power Brakes
Post by: WickedC20 on April 26, 2006, 05:37:00 am

Order the booster and Master as a unit, I paid 175.00 for both a few years ago.
Dont over adjust or under adjust the booster rod, makes stopping such a pain