Questions & Answers for: hissing brake booster

Question about 1984 F 150

2 Answers

brake. The hissing is louder inside the cab than outside, it sounds like a vacuum leak. Under the hood, the big drum bolted to the firewall looks pretty rough, the paint is peeling off the lower half

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brake pedal I hear A hissing noise and the engine revs up, then tries to die when the brake pedal is released. Hello; Yoou most likely have a vacuum leak in the line from the booster to the intake. It

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...booster is going bad makes hissing sound when brake applied.But should not make any kind of air leakage noise at all.Replace brake booster.Hope this was helpful for you. Could be the brake

...hissing noise near the brake pedal that stops when I press on the brake pedal most likely have a bad diaphram in the brake booster that hisssing sound is vacuum leaking under hood there will be hose ...

Question about 2003 Expedition

3 Answers

...hissing at brake peddal when applying you need a brake booster Brake booster is not boosting air to your brakes the hissing sound is the air hissing out of the booster.Your brake fluid leaking that ...

Question about 1987 F 150

2 Answers

...Hissing is more associated with a failing brake booster. Since it uses manifold vacum developed by the running engine, you will hear a hiss as the engine tries to restore the lost vacum. Hello ...

Question about 1994 Mustang

2 Answers

...car Brake booster diaphragm is gone resulting in vacuum leak and hence soft brake and hissing sound. Get the brake booster changed, it will be fine. need to chek & ovehol the brake master ...

Question about 1994 Mustang

1 Answer

...that sounds like the hissing is when brake is applied. check the booster . thats why the engine sutters when brakes are applied, the booster starts to leak vacuum, thats where iwould start. good ...

Question about 1994 Mustang

1 Answer

...hissing noise? IT is probably a vacuum leak in the brake booster. With the pedal going to the floor There is either no brake fluid or you will have to bleed the system. Replace the booster and bleed ...

brake pedal the hissing sound reduces a lot Check the large vacuum hose from the booster to the engine intake if the hose is good disconnect it at the booster and plug the hose if the hiss is gone the

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