Generally the brake pedal gets harder to push when braking. You may also hear a vacuum leak when the brakes are applied. And sometimes the will engine idle rough when stopped and holding the brake pedal.
you will have a hard brake pedal
The brakes will be real hard to push.
BAD power brake booster are a vaccum leak at the booster.
Start the engine and then push the brake pedal down. If it is soft and easy to push then the booster is okay. If booster is BAD the brake pedal would be hard to push.
Your power brake booster is probably bad.
The power brake booster is bad.
bad o2 sensor Could also be a power brake booster going bad.
hard brake pedal is the most obvious sign only way i know to test a booster, is to turn engine off. use brakes several times till pedal is hard. then with brake applied,start engine. the brake pedal should then soften.if the pedal stays hard the booster is bad
Power booster is bad or the vacuum supply to booster is cut off.
SOME of that is normal. It's only a problem if the power brakes are getting hard to push.
The power brake booster may be going bad.
I would say a power brake booster or a brake booster would be the same.