brake problem that's buggin me

[boble94]

welll, when i drive and brake, its fine. but when i let off, its like a surge or deep tone squeal.
I'll try to record the sound tomorrow when i get a chance.
has this happened to anybody before?

I have a 99 Yukon.

 

[boble94]

anyone?

 

[AtomicHoe094]

how old are your pads and rotors? are they worn down?

 

[boble94]

well its been cold and snowing, so i havent gotten a chance to actually look at them.
the dealer i bought it from said they were new. but idk.
can old pads/rotors make surging noises?

---------- Post added at 04:46 PM ---------- Previous post was at 03:54 PM ----------

well, i had the chance to video the sound.
watch when i let off the brakes.
anyone know what this is?
http://www.youtube.com/watch?v=E8g4bK5fCY4

 

[fyremanpat]

sounds like something with the master cylinder...maybe time for a re-build

 

[boble94]

i wish for a warm day so i can take it apart and check out whats the deal.

 

[branndon_b]

may wanna get a buddy to see where the noise is coming from, front or back, before you start dismantling things. sometimes my rear brakes feel like they release like a half second or so behind my front brakes. it's not affecting my braking or anything, but sometimes it's a bother. anyhow, i'd try to see that it's not a particular brake making the noise. fyremanpat may be right, but i'd try to make sure it's not the master cylinder before i started dismantling everything. also, if it's not affecting your braking, and it's just a bother, i'd roll with it until it became a problem before i fixed it. just my 2 cents.