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What problems could exist if there is a power brake booster that has a vacuum leak?
Wiki User
∙ 10y ago
Insufficient vacuum to assist braking requirements resulting in a "hard" brake pedal.
Another very common symptom can be that Brake Fluid is disappearing from the Master Cylinder, with no sign of the leakage. It can be sucked past warn seals of the Master Cylinder and through the Booster, into the engine and burned.
Wiki User
∙ 10y ago
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What causes your car to die when you press the brake?
A faulty power brake vacuum booster could do that.
What is causing the hissing sound when you step on the brakes?
Sounds like it could be a vacuum leak at the power brake booster Check the lines to booster and the check valve at the booster Could be a defective brake booster also
Why would your 98 jeep grand Cherokee brake pedal get stiff then go back to normal?
Could be a vacuum leak Could be a defective power brake booster Could be a bad check valve on booster
What causes Suzuki sidekick to stall out when applying the brakes?
It could be a leaking vacuum hose to the power brake booster or the membrane in the booster could have a hole. When the brakes are applied, the booster is opened to the engine vacuum via the hose. The vacuum leak would then increase, causing the engine to stall.
Why is my brake pedal sometimes hard then another time soft calipers were replaced as well as rotors.?
Sounds like it could be a problem with the vacuum booster or vacuum supply to the booster Check for a vacuum leak Make sure the check valve on the booster is working Check the vacuum canister
What could be wrong when the brake pedal gets really hard when aplying brakes?
Power booster is bad or the vacuum supply to booster is cut off.
Your car is sputtering when hit the brakes and it sometimes even cuts off what could that be?
Perhaps a vacuum leak at the power brake booster or the check valve on the booster.
What would cause the brake pedal to be hard and not go to the floor and doesnt engage brakes?
Your power brake booster may be defective. You may have a vacuum leak or the booster itself could need replacing.
How do you test brake booster?
check to see if it holds vacuum. 1) Shut vehicle engine off 2) Step on brake pedal (should go down easily) 3) Step on brake pedal a 2nd time and it should be difficult to push, if working properly (holding vacuum). If pedal is difficult to push down the 1st time, booster is not holding vacuum. Could be the "one-way" valve on the booster is defective, or could be that the booster itself has developed a leak due to rust or corrosion.
A power brake booster has a vacuum leak All of the following conditions could exist EXCEPT?
Rough engine idle
Stiff brake pedal and had the master cylinder abs replaced what could this be?
Check engine vacuum and power brake vacuum booster. If the brakes work but just require extra effort to stop, it's a brake boost problem.
When appling breaks you hear a hisssing sound in your 1995 buick rivera?
Could be a vacuum leak - perhaps bad brake booster Could be worn brake linings metal to metal
