Jump to content
Ultimate Subaru Message Board
Sign in to follow this  
archemitis

warped rotors?

Recommended Posts

my car vibrates when i hit the brakes, but it vibrates when its going down the road too. im wondering if its a rotor or a bearing. would a bearing vibrate worse when you hit the brakes, or what? 87 hatch.

Share this post


Link to post
Share on other sites

If they are warped real bad, they will vibrate even without being on the brakes.

 

My '86 Brat had warped rotors. Would vibrate REAL bad braking at high speeds. Wouldn't vibrate much braking at low speeds, but at low speeds the car would vibrate while driving.

 

I replaced the rotors the other day and put new pads on. The car drives smooth now, brakes smooth. The rotors were so warped, you didnt need to be on the brake for it to rub in a certain spot... making the car vibrate.

 

Could also be a combination of unballanced tires and bad rotors.

 

-Brian

Share this post


Link to post
Share on other sites

if it's the bearing you could lift the front and wiggle the wheel. it would definately be noticable if it's so bad that it happens when you're driving. i have a little play in both bearings (280k miles +) but it's not noticable driving, so i think you would have a lot of play if the bearings are the culprit.

 

edit: and regarding what the general said, definately look at the axel too, it could act exactly as you described. with the car lifted, rotate the wheel and see if it's binding at any point.

 

let me know what you find, i'm interested.

Share this post


Link to post
Share on other sites

Vibrating while braking usually indicates warped front rotors.

 

Vibrating under hard acceleration indicates bad CV's

 

Vibration all the time is usually unballanced tires.

 

 

If its a bearing, it wouldnt vibrate until the bearings were REAL bad. By that time, you would have heard alot of grinding from whichever bearing was bad.

 

-Brian

Share this post


Link to post
Share on other sites

its gotta be rotors then, i changed ball joints, front axles. tried different wagon wheels. looks like new brakes tomorrow. or i'll just get used to it:clap:

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

×