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Rust on brake rotors

This is a discussion on Rust on brake rotors within the General Help forums, part of the LSx Technical Help Section category; My car has been sitting for about 3 months and rust has developed on the rotors. when i was braking ...

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    Detailing + Design third_shift|studios's Avatar
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    Rust on brake rotors

    My car has been sitting for about 3 months and rust has developed on the rotors. when i was braking today i noticed a hissing sound-is this the rust being scraped off? is the hiss a non-related sound? is the rust a problem?

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    Story of My Life!! BIG D's SS's Avatar
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    Rust just set up on them and after driving tit for a while it will clean itself back off. Mine did that when it was parked for a month and a half.

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    In high humidity I get some rust on mine overnight. Doesn't make any sounds though...wouldn't worry about the brakes as long as you have good pressure.

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    Detailing + Design third_shift|studios's Avatar
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    lets talk more about "pressure"...i jsut had my front breaks bled by my friend. They were kinda soft b4 i hibernated the car and when it came out, my buddy and i bled the front breaks, but they still feel kinda soft.

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    That sound is normal on cars with exposed rotors. It should go away after you drive it for a short distance. It also helps if you get the car going 20 or 30 mph then get on the brakes hard. This should help clean them off after a couple times.
    Last edited by bigtone263; 02-24-2006 at 11:35 AM.

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    Whenever I bleed brakes for any reason, I always do all 4 - RR, LR, RF then LF.

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    Senior Member Orcus79's Avatar
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    I'm no expert, but have you gone over all the hoses? Also I think that you have to vacuum bleed systems with abs, doesn't hurt to do it any anywas and get a full flush.

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    Senior Member SeVeReDiStOrTiOn's Avatar
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    Quote Originally Posted by Orcus79
    I'm no expert, but have you gone over all the hoses? Also I think that you have to vacuum bleed systems with abs, doesn't hurt to do it any anywas and get a full flush.
    You can bleed brakes that are abs...you just have to be careful not to let the reservoir get to low on brake fluid. Otherwise you'll have to have the abs unit bled.

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    down in it 310stanger's Avatar
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    rust on brake rotors isnt a problem if its only surface rust. but on lots of american cars that sit for real long periods of time tend to have rust that gets very deep and results in pitting and in most cases means rotor replacement. if its jus surface rust take the car up to 30 a few times and stand on em. as far as a soft pedal goes flushing the fluid out and gettin new fluid is a good thing to do if your cars fluid is around 2 to 3 yrs old. bleeding will help a lot but not when your fluid has water in it. brake fluid is hydroscopic which means it absorbs moisture. water boils, brake fluid doesnt. if you have water in your lines you will have boiling fluid which leads to the mushy pedal. this is not good. also water in the lines can lead to premature rotting of your brake lines, which is really not good. check your lines for leaks.

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    Detailing + Design third_shift|studios's Avatar
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    so i should take this to firestone and have them do the brakes?

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    Senior Member ss~zoso~ss's Avatar
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    is it still doing it? take it out for a normal drive if it still does it after a couple stops at lights its not rust, its something else, how are your pads?

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    Senior Member Zboner's Avatar
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    his pads are good, it was just a bitch to bleed to say the least

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    Senior Member ss~zoso~ss's Avatar
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    u let joel bleed your breaks thats your problem, J/k lol

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    Detailing + Design third_shift|studios's Avatar
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    the pedal is still soft. I don't have a leak...maybe it's b/c we only did the fronts and not both?

    BONER! get over here and fix my shit....

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    Senior Member Zboner's Avatar
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    maybe u do have water in your lines, i thought you said they felt the same as they did before you put it away for winter?

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    and i said it was soft b4 the winter. gaybo.

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    Senior Member Zboner's Avatar
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    thats what i mean so there about the same then as they were before

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    LSX whore allbaugh_04's Avatar
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    I searched for this topic and mine start showing rust in only a few days. Of course when I take it for a quick spin, it's all gone. Of course this will happen when I store it this winter for 4-5 months right. Is this anything to worry about? Thx guys

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    down in it 310stanger's Avatar
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    Quote Originally Posted by allbaugh_04 View Post
    I searched for this topic and mine start showing rust in only a few days. Of course when I take it for a quick spin, it's all gone. Of course this will happen when I store it this winter for 4-5 months right. Is this anything to worry about? Thx guys
    theres surface rust and there real rust. real rust can cause runout problems, brake pulsations, noise etc. if you get really deep rust and pitting even a rotor cut wont help. but lots of times if its minor rust they can be cut and good to go. no more pulsations and a nice new contact surface. 4 to 5 months stored outside and you are very likely to get bad rust. hence why when theres no snow on the ground i take my stang for short spins etc.

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    LSX whore allbaugh_04's Avatar
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    Quote Originally Posted by 310stanger View Post
    theres surface rust and there real rust. real rust can cause runout problems, brake pulsations, noise etc. if you get really deep rust and pitting even a rotor cut wont help. but lots of times if its minor rust they can be cut and good to go. no more pulsations and a nice new contact surface. 4 to 5 months stored outside and you are very likely to get bad rust. hence why when theres no snow on the ground i take my stang for short spins etc.
    It'll be inside but of course it'll still be very cold. It can get below 0 sometimes, like -10 at about the most extreme, but most of the time it'll be about 20 degrees. Do I still need to worry, or should I take it for a spin about every 2-3 weeks for good measure? Of course I won't have collision on my insurance coverage, and I'll only take it out if its dry. What do you think?

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