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Break booster leaks how to take it out. - Sportwagon Renault Cars & Trucks

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First you need to remove the master cylinder. the bolts for power brake booster are behind the master cylinder .

Posted on Dec 30, 2010

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2 Answers

My brake pedal is spongy, what would cause that? fluid level is good


air in the line or bad booster. try getting the brakes bled if it doesnt fix it probably a bad booster

Jun 26, 2012 | 2005 Dodge Ram 2500 Truck

1 Answer

Why does my break pedal leak air?


You have a bad seal in your break booster unit,, just behind your master break cylinder is a big roung doughnut looking thing, this unit works off vacume from the engine, it helps you push down on the break peddle so its not so tuff to stop! well on that booster unit there is a seal that keeps the unit from loosing vacume past the rod leading into your break peddle, sounds like this seal is leaking vacume .. you can replace this unit your self if you want to tackle it, its going to be some work to replace and you should probley have the manual on this truck to do the work.
Hope this helps! Good Luck!

Sep 13, 2011 | 2004 Nissan Titan

2 Answers

My break pedal is hard to push & i can here air when the peadel is pushed into stop, and is this connected to the abs if there is one on my model.. thanks for your help. would this be the brake...


not sue u have abs on that model
more than likely break booster
best way to check booster is stop truck pump pedal a few time then put your foot on brake pedal and push down this is with truck stopped ,keeping pedal pushed start engine brake pedal should move down more if booster is working check all pipes tp booster

Sep 29, 2010 | 1995 Toyota 4Runner

1 Answer

Change break fluid and boot at break boster break paddle hard to push


replace the brake booster. the vacuum assist isnt working thats why its hard to push the brake pedal, check the booster and see if its leaking air.

Feb 06, 2010 | 1992 Ford F350

3 Answers

There is an air leak under the dash and it ties in with the brake pedal


It is a defective brake booster. When the internal diaphram of the brake booster develops cracks or pinholes from age, the crankcase vacume pulls air through the defective break booster diaphram from the air intake valve located on the rod connected to the brake peddle. At first the air leak sound my change or even go away when the brake peddle is depressed. But over time the booster diaphram will detierorieate to the point where the air leak sound will be contiuious. This is a problem that should be addressed ASAP as a defective break booster reduces the power assist to the break peddle and may make it difficult to apply enough break pressure to stop in an emergency situation.
Have the brakes checked by a certfied brake shop right away.

Feb 01, 2010 | 1999 Jeep Grand Cherokee

5 Answers

When I step on pedal I get a vacuum leak sound under the dash.Have to push real hard on pedal for brakes to work. I'm not sure where all the air assist parts are. Is there a hose that might have cracked or...


the vacuum operated power brake booster is leaking, replace it, four bolts on the inside of firewall plus two to take the master cylinder loose..

Sep 09, 2009 | 1997 Chevrolet K1500

1 Answer

My car idles at 3 and the brake is stiff


Sounds like you have a major vacume leak, Chk. line going to break booster. Do you hear a loud hissing or whiseling noise either comming from under the hood or under the dash especily when you apply the break? If under dash could be bad break booster, if under hood still could be booster or a break in the vacume line from engine to booster.

Sep 07, 2009 | 1995 Pontiac Grand Prix

1 Answer

Loud hissing sounds comming from the intake followed by rough idle then stalling. Not an every time deal,but about 80% of the time


Sounds like a major vacume leak, most likely the fittinng comming out of the intake for your power break booster or a break in the hose going to the break booster. In any case there is a major vacume leak.

Jul 17, 2009 | 1994 Dodge Ram 2500

1 Answer

97 Blazer brake pedal making hissing sound


Sounds like a vacume leak from power break booster, when you loose vacume it will stall out the engine if enought vacume is lost. chk. power break booster. and hose from engine leading to booster for vacume leak, booster is under hood, break master cyl. bolts to it.

Feb 21, 2009 | 1997 Chevrolet Blazer

3 Answers

Brakes


Most likely your vacumn power brake booster has failed. It is not rebuildable. You will need to buy a new one.

Jun 11, 2008 | 1994 Chevrolet Corvette

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