Answer: Brake calipers (front or rear) normally "go bad" because the dust seal was not replaced, thus allow dirt to get onto the piston as the brake linings wear down. When you go replace the linings and DON"T clean the piston, it allows the dirt to damage the caliper bore. NORMALLY, brake calipers leak and can be overhauled with a few sealing rings, and a good bleeding of the brake system.
Brake fluid contaminated with moisture and dirt along with wear would do it.
brake light switch is bad
bad or out of adjustment brake switch on the brake pedal arm
Often this type of behavior is caused by a bad ground for the lighting circuit. Check the ground circuit for the brake lights.
I have a 03 gran prix and my brake lights doesn't come on when I go to brake
The hub bearing can go bad and create noise.
Possibly a bad BOO Switch. BOO means Brake On and Off switch. Common problem in mid 90's explorers. Would cause rough idle and stalling.
Generally new pads will contain a layer of dust which causes the initial squealing. The squeal should go away after a bit if driving.
manualy lift brake pedal to see if they go out. if so check spring at pedal
A leak in your brake line, or very low brake fluid, both of which are extremely dangerous and should be fixed at once.
You need to go to the rear brake caliber on the rear of your quad and take that off then you need to take off the two Allankeys on the side of your caliper
Thermocycling.