We were driving on the highway and heard a metal ping sound. The emergancy brake light came on. The car stops, but the petal is harder to push and has to be all the way to the floor to stop. No sweaking or squealing when stopping. Not shaking like a caliper is stuck. Power booster went or what?
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Re: brake light on, power brakes seem gone
Chk. for vacume to booster, or loss of vacume like a break in vacume hose, do you hear a hissing noise when you step on break peddel. If you don't hear anything chanses are its the booster. When peddel gets hard to push you either lost vacume or booster went bad.
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If you are talking about the brake pedal being stiff and too hard to push, then working easily again - it sounds like you temporarily lost the power assist. This will happen again and it is not safe to drive until properly repaired.
Many decades ago cars had no power assist and took much more foot pressure and much longer distance to stop. So your brakes were working, just not the assist.
The power assist is provided by a vacuum line from the engine. The likely causes of the failure are: stalling or stopped engine, leak in hose from engine to brake assist booster or leak in the diaphragm inside the brake booster. There are also other much less likely causes from brake fluid lines and the master cylinder. Regardless, don't drive knowing the brakes are likely to fail.
You need to have the Airbag System serviced because you have a bad sensor or fault with the Airbag. You need to service the brakes most likely you will end up replacing both front rotors as well as the Front pads. The passenger side caliper tends to dig into the back side of the rotor in the escape for some reason and since you always want to replace these in pairs so they have even pressure you will need to replace both.
Sounds like you are leaking brake fluid. The grinding sound may be from the brake pad not disengaing from the rotor because of low brake fluid pressure. Have this checked immediatley you may loose all brake function!!
about the white smog what i think is the you my have a leak some where in the engine a could be the radiator cup who knows now about your brake light maybe the emergency brake is on/ release the handle ?
This sounds like a wear indicator( a metal tab on the brake pad) is doing its job, warning you that the brake pads need replacement soon. you can bend the wear indicators away from the rotor so they won't make contact. This will stop the annoying noise. Replace the pads and check the brakes soon. Brake pads should always be changed on both wheels at thge same time, so change the other front pads also.
Sounds like your brake pads/shoes need replaced. When the brake linings wear out, you have metal to metal when you step on your brake pedal. You may have to replace rotors/drums due to severe scarring.