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Sounds like the master cylinder seals have failed.

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โˆ™ 2006-03-10 12:24:49
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Q: Why might a 1994 Jauguar XJS have no brakes and no pressure on the brake pedal and be leaking oil?
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Air leaking sound when brakes are pressed on Tahoe?

The brake booster is leaking vacuum pressure. If you look under the hood its black and round and located behind the brake fluid reservoir

Why do your rear brakes on your S10 have no pressure?

Usually, a loss of pressure in your brake system means that there is a hole somewhere in the system. A leaking brake line or a punctured reservoir could cause a loss of pressure. A bad master cylinder could also cause a loss of pressure in the back brakes.

Chevy Venture brake line leaking?

When a brake line is leaking on the Chevy Venture the brake line should be replaced as soon as possible. A leak, however small, can cause hydraulic fluid to escape the brake line which will cause a loss in brake pressure. The brakes should be bled of air after the new line is put in to remove gaps in brake pedal pressure.

What does the Brake warning light 1992 Chevy Silverado mean?

It means there is a pressure difference between the front and rear brakes when the brake pedal is depressed. It will not reset until the pressure difference is repaired or eliminated. Check for low fluid/ air, rear brakes adjustment or bad. Front brakes bad, Bad master cylinder internally leaking pressure, etc.

What would cause brakes to lock on a 2000 Nissan Altima?

One reason: Leaking master cylinder resulting in brake fluid leaking onto the braking mechanism, causing a failure to grab and then excessive grabbing as the pressure on the brake pedal increases

What is abs brake pressure modulation?

The pumping and releasing of brakes by the unit is brake pressure modulation

What happens if there is no brake pressure?


Why do you hear escaping air when you apply your brakes?

The power brake booster is leaking vaccume.

What does it mean when brake fluid is leaking out of brakes?

bad calipers change them yesterday not tomorrow

How effective are air brakes verses a standard set of brakes?

Air brakes are just as effective as a standard set of brakes. The advantages to air brakes are that you do not have to worry about leaking brake fluid.

How do you figure out how to check brakes cylinders on 1994 GMC sierra pu and or find out how fix no brake pressure but still have brakes at bottom of peddle?

Make sure master cylinder is full Have assistant step on brake pedal Walk around vehicle and look to see if any wheel is wet (from leaking wheel cylinder) See if any brake line is leaking Make sure rear brakes are adjusted properly (if drum brakes) Check to make sure caliper slides are not frozen (not allowing disc brakes to self-adjust)

Why do rear brakes on 96 Chevy dually leak oil?

It is not the brakes leaking oil , Its the axel seals leaking rear end gear oil. If its not gear oil , Then its brake fluid and that means wheel cylinders are leaking.

Do air brakes use brake fluid?

No, they use air pressure or actually the lack of air pressure to stop the vehicle. The brakes are fully on until pressure builds up in the tank releasing the brakes. When you push the brake pedal this removes air from the system and applies the brakes.

Why would an 81 Chevy truck die when you press the brakes?

The power brake booster is leaking vacuum and that makes the engine die when the brakes are applied. Replace brake booster.

What are the causes of brakes locking up on 91 Chevy 4x4 half ton?

Axel seals leaking grease on the brake shoes. Wheel cylinders leaking brake fluid. To much brake dust in the drums.

Your brakes feel light and there is brake fluid leaking from rear disk brake on a peugeot 106 1994?

change the wheel cylinders or the brake lines

Why would you lose pressure in your brake pad after changing the back brakes on a 1992 Pontiac Grand Prix?

You need to bleed the entire brake system. Bleed in this sequence, RR, LR, RF, LF. If you do not know how to do this, do a search online for "bleeding brakes" THE REAR WHEEL CYLINDERS MAY BE LEAKING SHOULD ALWAYS CHANGE WHEN DOING BRAKES AND BLEED REAR BRAKES

Why is your charade leaking brake fluid from the piston?

Worn seal. Replace the caliber and bleed the brakes.

When applying pressure to brakes lightly brakes lose compression Why?

faulty master brake system

Why does it sound like air is coming out of your brakes?

brake booster could be bad the seal around the rod that hooks to the brake pedal is leaking

What should you do if your car brakes are not working and the brake pipe is leaking?

Don't drive and take it straight to a garage 'cause it will empty your brake cylinder.

What are brake chambers?

On an air brake system, the brake chamber is what actuates the air brakes... it converts air pressure to mechanical force, either turning an S-cam (on foundation brakes), or actuating a caliper (on disc brakes).

Why does your Chevrolet s10 rev up when you apply your brakes?

The power brake vacuum booster is leaking, replace it.

When you put on the brakes by pushing down the brake pedal air pressure is applied to the brake pads?

In all cars and most trucks HYDRAULIC pressure is used to apply the brakes. In an air brake system such as is found on medium and heavy duty trucks the air is actually released to apply the brakes.

What is a brake compensator?

a brake compensator aka proportioning to the fact that the front brakes useually do 70 percent of the stopping the compensator reduces the pressure of the brake fluid from the master cylinder to the rear brakes being they need less hydraulic pressure to stop. it also acts as a saftey valve in case a brake hose or line bursts, it will let to brakes retain pressure for emergency stop