BADASS of New England

An automobile club for the enthusiast who enjoys the last of the big GM cars. The rear wheel drive B and D bodys. Chevrolet Impala SS, Caprice, 9C1, Buick Roadmaster, Oldsmobile Custom Cruiser, Cadillac Fleetwood
 
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 BRAke power booster!!!

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BoSStonsSS



Posts : 770
Join date : 2009-01-22
Age : 30
Location : BOSTON,MA

PostSubject: BRAke power booster!!!   Sat Mar 21, 2009 11:42 pm

i think im in need of one.. got my master cylinder changed about a 1month and soome change ago.

when driving I hear like air going through up front then when i appply brakes it stops by kind of spongy




could it be the brake booster? scratch
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bammax

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Posts : 2301
Join date : 2009-02-22
Age : 36
Location : Mansfield, Ma

PostSubject: Re: BRAke power booster!!!   Sat Mar 21, 2009 11:59 pm

You have to bleed the brakes. There's most likely air in the lines from the last brake work you did, or from a blown line.
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UberWagon



Posts : 107
Join date : 2009-02-13

PostSubject: Re: BRAke power booster!!!   Sun Mar 22, 2009 11:58 am

If there is a problem with the power booster for the brakes you should have issues with idle when you are braking.
Most engines do not like having that large of a vacuum leak and will begin to idle poorly or die when there is a problem with the booster. Usually a sign of the booster going out is the brakes are harder to push, as there is less assistance from the booster.

I found the easiest way to bleed the brakes on my car is with it running, this way the ABS pump has power and is functioning while you are bleeding it, you said you replaced your master cylinder. If a master cylinder is not bench bled properly prior to installing it, there will be a lot of air forced through the entire system making it soft.
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BoSStonsSS



Posts : 770
Join date : 2009-01-22
Age : 30
Location : BOSTON,MA

PostSubject: Re: BRAke power booster!!!   Sun Mar 22, 2009 12:31 pm

alright koo ill have it checked out 2morrow



thanx ya'll
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BRAke power booster!!!
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