Question about 1999 Buick Century

3 Answers

1999 Buick Century Custom _ Brake Problem My 99 Century has little to no assist and it makes an air hissing sound when depressing the brake pedal. I think that this means that I have a faulty brake "power booster." I am thinking that maybe it is a faulty push rod seal in the booster or something along those lines. The vehicle will stop as long as you press hard enough on the brake pedal and the faster you depress the pedal determines whether you receive any brake assist while braking. A slow action on the brake pedal causes the brake pedal to go kinda mushy with a lot of air hiss with little to no brake assist. I am kind of strapped for money right now and am trying to fix this with the least amount of financial damage, so if you think that it is the "power booster" can I simply remove the booster and repair it with some sort of seal kit or something along those lines or do you recommend that I just buy a new "power booster" altogether? Jack.

Posted by on

Ad

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Buick Master
  • 14,092 Answers

Nope you have to replace them.when brake booster diaphram leaks you cant plug them.i have bought one at salvage yard in good shape.until i got a new one.get your brake booster from inside salvage yard where they stock them inside out the weather.dont take any brake booster off old outside cars been in all kinds bad weather. there vacuum diaphram probably dried up will leak also.

Posted on Jun 11, 2011

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Dedicated:

    Visited the website for 20 consecutive days.

  • Expert
  • 356 Answers

Those hose to your power brake unit may be sucking in or have hole in it.The vavle may need replacing or power brake unit replacement.Before any of that how many miles on car.What have you done if anything to brakes or engine recently

Posted on Dec 01, 2019

Ad
  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Do you have to lubricate the brake booster are just put it back on and if so excatly where to grease the brake booster and what to use can you use brake grease

Posted on Nov 30, 2019

1 Suggested Answer

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Need to replace right rear brake tube on 1999 Buick century custom


first measure the length of the steel tube to be replaced and diameter of tube cut off each end at the fitting so you can remove that fitting with a 6 sided socket. this will keep the fitting from stripping off the flats on the fitting next spray bleeder with wd40 to help open it so you can bleed the system after you replace that line . take your time with the bleeder as it will twist off if not fully freed up

Dec 23, 2014 | 1999 Buick Century

2 Answers

Car looses power when brakes are pressed. In my 91 Buick Regal.


I wonder if you have an air leak in the brake servo? Check the manifold vacuum as you operate the brakes. Look for bad hoses around brake servo.

May 19, 2014 | Cars & Trucks

1 Answer

2001 ford escape makes a hissing and high pitched squealing sound when the brake pedal is released?


You need to have the brakes inspected. This noise is the brake pad wear warning tab hitting the brake rotor.;

Jun 27, 2012 | Cars & Trucks

1 Answer

I get a hissing sound by my brake peddle when I apply my brakes and it does not go away. When I run the engine and depress the brake peddle and hold it there and turn the engine off the brake peddle...


Your bake booster has failed causing a massive vaccume leak when you apply the brakes. That in turn gives more air to the system so the computer tells it to add more fuel thus causing the rpms to go up. Replace it %99.5 chance that will fix it.

Apr 04, 2012 | 1999 GMC Yukon Denali

2 Answers

'99 bUICK CENTURY A/C blows warm air


HELLO GURU , NUTS WERE NOT THERE. WE TOOK OFF THE SOUND DEADENER. NO NUTS, NO STUDS

Jun 28, 2009 | 1999 Buick Century

2 Answers

Air/Hissing Noise from Brake Pedal


this noise is caused by a defective power brake vacuum booster, (big round thing behind the master cylinder) the diaphragm is leaking vacuum.

May 06, 2009 | 1995 GMC Suburban

2 Answers

99 Buick Century wheels


There's a little rust making the wheel stick to the rotor. Just give it a kick to the tire and it'll break it loose.

Jun 14, 2008 | 1999 Buick Century

Not finding what you are looking for?
1999 Buick Century Logo

464 people viewed this question

Ask a Question

Usually answered in minutes!

Top Buick Experts

Marvin
Marvin

Level 3 Expert

85222 Answers

Jonah Oneal

Level 3 Expert

14092 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers

Are you a Buick Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...