Losing Brake Fluid, diagnosis or suggestions appreciated
I can't seem to figure out the problem. I know there is a leak somewhere, just wanted to know where to start looking for the failure spots in the brake system. My pads are squealy when I come to a stop under light pressure, and when parking and barely braking. They also squeal when the brakes are cold, and I'm just pulling out of the garage and driving. They have a "speed determined" rhythm, i.e. the squeals come in pulses in accordance to how fast I am driving. Once I get above around 30 mph, the sound stops, until I come to a stop. The process repeats until the brakes are warm, or when I've just been using the brake a lot. Once they're warmed up, they squeal less, but its still there.
Parking brake used to come on frequently and actually stayed on, I added fluid since it was low, and readjusted everything parking brake related, and now the parking brake light is fine. It does however turn back on when the fluid is low. The fluid doesn't lower substantially, but every week it's like 1/4 of the way down. I'm wondering if this has anything to do with why my brakes are so squealy, because I have cleaned the shims, and backings and applied that "brake disc quiet" goop to the backs of the pads, and the shims. I also noticed that I do have a leak (garage floor has brake fluid on it) and I can't seem to figure out where its coming from. Anyways, long story short, I would like to know if anyone has an idea on how to get rid of squeals, and what parts of the brake system are common problems.