2002 Pontiac Aztek "power brake booster noise" Questions

...power brake booster leaking vacuum. The inability to shift out of park is likely to be a bad SHIFTER INTERLOCK SWITCH attached to the brake pedal under the dash. sounds like powerbrake booster is ...

power brakes aren't working. hissing noise when braake is stepped on. Sounds like the vaccum hose is off to the brake booster. Check that its is right behind the brake fluid rev. were you put the ...

...BRAKE ON. THE DEALER PUT A NEW POWER BOOSTER ON AND THE PROBLEMS STILL THERE. IF THE CAR SITS OVERNIGHT IT WILL TAKE ABOUT 10-20 MIN BEFORE YOU HEAR THIS NOISE. WHEN THE BRAKE IS APPLIED THE NOISE ...

...leak in the vacuum hose to the power brake booster unit, the check valve between the power brake booster unit and the vacuum hose is leaking, or the brake power booster unit needs to be

...if the power brake booster is bad, The brake pedal is very hard to push down. You may know it is starting to go bad if you hear a hissing/sucking noise when pushing the brake pedal. Hope this ...

...sound but no power brake pressure The power brake booster, is not holding vacuum, that's the hissing noise you hear, and that's why you don't have power brake's, the only fix is replacing the

...brake pedal the noise you hear is probably coming from the power booster for the braking system, i would ge it in and have it checked as soon as you can i just had the same problem,replace your brake ...

...power brake booster instead. You could plug the vacuum line to the power brakes to see if the sound goes away (but brakes will be hard to push)? The power brake booster can be rebuilt with a new ...

...is? You have a leaking power brake vacuum (this is what you hear) operated power booster.  Go to this link to read the procedure of removing and pacing the power brake vacuum ...

...power brake booster unit ( check by spraying carb. cleaner at the base for the master cly. and the power brake booster unit, with the motor running if the engine changes speed the unit is bad ) and ...