When it's cold, i start the car, go to drive it, as soon as i hit the brakes it wants to lock up and squeal real bad, it may be because the rpm's are still a bit high as it hasnt warmed up fully, like 1200 rpms, so the car takes off a bit fast as I left off the brake, then i have to stop pretty quick to go down off the curb.

I thought it may be moisture buildup, but who knows, it squeels occasionally while coming to a stop while warm as well, on occasion almost wanted to lock up, the squeal is embarassing.

I thought it may also be my wheel cleaner spray getting on the rotors, so i cleaned the rotors with brake cleaner spray and stopped using my wheel cleaner for a bit, and no luck.

Car was serviced almost 2 years ago with new basic rotors, ceramic pads, brake fluid was changed also, I'd imagine it was bled if they changed the fluid but I could be wrong, for the rear it has new wheel cylinders and shoes, about 6 months ago after too much brake torque burnouts I messed something up, shop fixed it, noise went away.

Maybe it's the back brakes not working properly causing the front ones to work to hard, any suggestions is wonderful, local shops can't seem to diagnose the problem, they say its normal, maybe it is and I should get used to it.

Could it be a aging Master Cylinder with 146k miles or original brake hoses/lines?, it pulls to the right when you hit the brakes hard, alignment is perfect too. I personally just don't like the initial squeal and lock up when leaving my drive way, once you warm up the brakes it's alot better with occasional squealing.

 

The hose is acting as a check valve--who knows it may be causing the caliper to stick, thus the squealing. At any rate, I'd swap the hoses.

James