en11871

Hello Everyone,

I'm very curious about how does a brake booster break down. Does get worse and worse or if it fails it fails? Is it possible for the booster to fail at times or will it fail ALL the time if it is bad? My brakes only gets stuck in the up position in the morning after the car has been sitting overnight or for awhile. But it doesn't get stuck everyday. I will know when it will get stuck. I would step on the brake once and if the next step the pedal stays up then the brake pedal will get stuck. I'm wondering if it can be the booster check valve. The reason is that the booster is very expensive. Please help guys.

Edward
917-361-5453

skperformance

iTrader: (6)

sounds like the booster , all of us have that spongy pedal feeling.

en11871

SK,

Thanks. For I've been told, the brake booster almost never fails or go bad. Is that the case? So the booster can fail from to time and not all the time? Thanks.

skperformance

iTrader: (6)

On most cars it never fails , every LS i have driven 95 and newer had a pedal that sinks to the floor . It brakes fine just the booster starts to fail by not holding enough vac assist.

PureDrifter

iTrader: (10)

really? my 95 never did that, my 99 does a tiny bit.

93LSexy

I agree with the guys here...brake boosters rarely fail. it's basically operated by vacuum and air to assist you push the master cylinder (which dont go bad that often either). I will start from your calipers and work your way back up. Try bleeding your entire system and change your brake hoses. they usually can break down over years and causes clogs that can really effect your pedal feel and braking power. I had a brake problem on my 93 Ranger. Changed the calipers, new hoses and the truck can stop on a dime now...Literally! Night and day difference. If you want to stiff your pedal feel up a bit, get the SS braided hoses.

Suneet

What year is your car? If its a 94 or earlier, you can get stainless steel brake lines that will help that "mushy pedal" feeling

en11871

Hi,

Thanks. I have a 1996 LS. System has been bled. New SS brake lines have been installed. I will put in a new master cylinder this weekend, but think I will put a new brake booster in. BTW, I never mentioned that my brakes feel mushy. LOL...just wondering where that got started on this thread. Any help from you guys will be greatly appreciated.

Edward

skperformance

iTrader: (6)

you have a 96 with stainless steel brake lines?
Where did you get them from and who makes them?

PureDrifter

iTrader: (10)

where did those come from

vaughn37

when my car is in drive and I have my foot on the brake pedal..I hear a humming sound and I am loosing a little rpm .. does this sound like a brake booster going bad???