what is this from and how do i fix it

[psfr311]

my brake rotors just recently started to look like this. they also squeak like you wouldnt believe when i start driving. goes away completely after about 5 minutes.
what has caused this and how do i get rid of the rust ( if possible)

99 tahoe 4x4 133k miles

 

[bowtiefreak]

Any car that sits outside will rust up on therotor pretty quick....more so where there is salt and snow. You up north here?

So, assuming you are up north that is a chmical reaction of salt and water. Salt is a very aggressive chemical when mixed with water.

 

[BattelWagun]

Just drive it, they'll be fine after a few stops.

 

[psfr311]

No I live in Florida. And I knew it was normal for them to rust just thought that was a lot an could be contributing to the squeaking

 

[Gzes]

Mine sat for 8 or so years and rusted a bit. Drove it and good as new squeeking didn't happen for me

 

[bowtiefreak]

were you on the beach? That caliper has a good bit of rust too

 

[noJeepshere]

Your brake pads are prolly glazed, which will make them squeal pretty badly. I've taken a file to the pads to roughen up the surface. It happens when the brakes get hot from heavy use. When it's time to replace the pads, do the rotors too with the napa high performance rotors and severe duty pads, they will make a night and day difference in braking performance.

 

[psfr311]

my calipers started to stick on me so i made the mistake of buying the cheap auto parts store replacements. those are about 6 months old and they are rusted pretty bad.

when its time to replace i plan on doing calipers, rotors, and pads all at once.
any good suggestions?