Brake problem

[Justa231]

For the past couple of weeks, I hear a low squeeling sound when I step on my brakes. It lasts for about 4 seconds and then goes away. Does anyone know that this may be? It kinda sounds like a relay.
Thanks
Nick

 

[scottyb]

It's probably the PowerMaster pump making noise. Could still last a while. It's up to you if you trust it. BTW, mine does it every once in a while.

 

[Justa231]

Thanks