InitialB

that might be the reason why it happens randomly. they do look pretty close to the rotor what would be the fix for this, new caliper?

roundman

disk brakes always have the pads very close to the rotors, it's their basic design that relys on the elasticity of the pistons seals to pull the piston back releasing the pads from the rotor when the brake pressure goes to zero but this doesn't pull the pads very far off the rotor, were only talking several thousandths of an inch here, unlike drum brakes where they have a return spring that pulls the shoes back away from the drum when the pressure drops. I wouldn't go replacing the calipers just for a minor noise problem but you might want to get the runout on the rotor measured to make sure it's within specs. (did you have the rotors turned and trued up when you changed the pads???) some disk brake pads are just noisy too due to the material they are made of. I would give them some time to wear in and see if the noise is still there.

InitialB

the rotors were brand new and the pads were brand new i put the car up on the lift and spun the wheel and the only noise i heard was some scrapeing from the pads, and the tire didn't spin for long but when i get in the car and drive it its almost like a ticking noise and when its cold squealing. so could it be that when there is weight on the wheel the noise gets louder I am just trying to come up with a solution for this problem and coming up short.

roundman

you might try using an anti-squeal compound on the back side of the pads. sometimes this helps eliminate the slight vibration and noise that comes from disk brakes. you can look for it at the auto parts store.
another thing to check is the caliper supports and bolts. are the calipers free to float on their support bolts?? if they can't move freely, then the pads can't get centered evenly on the rotor and one pad may be dragging just a bit on one side of the rotor. whatt did the old pads look like when you changed them? were they fairly evenly worn down in thickness on both sides, or was one side worn down a lot more than the other? this would indicate a caliper that won't free to float on the bolts like it should be able to.