there is probably something in the pool that got into the pump
brake pads could be worn out. would it be safe to drive for now if the front brake pads are ok?
Check your front brake pads
That's a pretty good sign that your break pads have completely worn down, and now you've got metal to metal contact. take your car to one of those quickie brake shops, post-haste.
possibly a bad brake...you should get all brakes done
brake pads shot
When Exhaust brake is on squeak noise comes from the engine?"
Check the brake pads. The most common cause of the noise is the pad backer grinding against the brake rotor.
Bad wheel bearing? Brake pads worn? Dirt/pebble caught between brake pads and rotor? Bad CV joint?
Worn Brake pads. ? needs to be more specific.
A vibrating brake pedal is an indication of a warped rotor. Noise is common to disk brakes but depending on the noise it can mean that the brake pads are worn out and you are due for a brake job.
Griding is a means of using a grid of horizontal or vertical lines to draw a pattern, or for pinpointing locations on a larger drawing. In urban language, griding is weaving back and forth across the street on your bike.