Question about 1999 Buick Century
Is ther a difference in power brake booster
Look between master cylinder and brake booster if the little pin is there in the middle. you definitely have a booster problems or vacuum
hope it helps
Posted on Mar 24, 2014
As with any replacement of a brake component that involves removal of a part that will introduce air into the line. Did you check to see if you have air in the line, if so you will need another person to pump the brake will you remove the air from the line from the brake booster, you will have two lines, usually for front and rear, so start there and see if that resolves your problem.
Posted on Mar 25, 2014
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Posted on Jan 02, 2017
SOURCE: hard pedal low stopping power
Poor braking may be due to severely worn pads (disc brakes) or shoes (drum brakes), however, a common cause of "sudden" hard braking is the power brake booster either losing vacuum or failing, causing the brake sytem to lose the assist the booster provides and requiring a stronger effort by the driver to slow or stop the car by "standing" on the brake pedal with much greater force.
Posted on Jul 19, 2008
^ Turbo Cars have Lots of Vaccum, Where did you ever get this idea from. I have personally converted 10+ Turbo Buicks to Vac brakes.
Make sure the check valve is okay at the booster. but it does sound like you have a bad booster.
Also, did you change the brake pedal to a Vac brake pedal?
They are not interchangeable.
Also, you should not have drilled the plenum, you can get a vaccum block to replace the plastic one on the top of the plenum with a vac brake port.
Posted on Jan 29, 2009
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