1988 Ford Bronco II "sound air leaking brake applied" Questions

...brake pedal, it sounds like its leaking air and very little brakes? Check to see if the brake master cylinder has gone out. Don't drive it until you get it fixed. See the added comment to 240cpa ...

...sound when i apply my brakes,like i am loosing air,and then i loose almost all of my brakes,the loosing air sounds the whole time i apply the brakes. It's the brake booster leaking. I would suggest ...

...air leak sound. What is the cause? When I tap softly a couple of times the air leak sound will most usually go away. The brake servo or booster is divided into two chambers separated by a flexible ...

...brake and watch air bubbles in jar, do this until no more air bubbles come out. You must do this on all four wheels to be effective. If this doesn't work there is a leak somewhere. Lines, caliper, or ...

sound can't hear anything. Hi Stevensdorot. Your problem is a leaking brake vacuum booster. The booster operates on engine vacuum by assisting the push when you apply your brake. There is a rupture in

...my engine stalls.but when at park idling seems fine.changed spark plugs ang adjust timing. This sounds like a vacuum leak. or mass air flow sensor you have a vacum leak or your brake booster is ...

air leaking sound when applying brakes Power brake booster leaking vacuum.If brake pedal becomes very hard to push then replace brake booster.

...sound is the air hissing out of the booster.Your brake fluid leaking that would be the master cylinder seal.Time to consider replacement of both. the hose that is attached to the booster is attached ...

...sound when I apply brakes. Is it a sign of brake wear? Something else? When I release brake pedal it stops. this could be an air leak in a hose,,,have a friend hold the brakes on and stick your head ...

...vacuum leak. When I apply brake pedal there is a hissing air sound from under dash. I bled the brakes which had a lot of air in system and making stopping hard. sounds maybe booster is diaphram is ...