Weird braking at high speeds, NEW TOPIC! how to replace rotors and pads Options

[HectortheRican]

When I'm going above 55 or so and I apply the brakes, the car seems to shake... the pedal shakes and the steering wheel shakes. Lower speeds, it's just fine. What could that be?

This post has been edited by HectortheRican: Aug 23, 2010 - 2:09 PM

[Batman722]

rotors are grooved.
time to replace the pads and either cut the rotors or get new ones.

[HectortheRican]

What does that mean?

[zonz540]

When you press the brakes, they rub on your rotors/rear drums. The friction wears down the brake pads as well as the rotors/drums. Eventually, the spots that arent rubbed by anything wont be worn down and they will form a lip around where the brake pad does press. You need to get rid of this lip by shaving off the rest of the rotor to wear it all down to the same surface or get new rotors.
Take the rotors to an auto shop and get your brake rotors milled or go to autozone and replace them. Getting them turned will cost you about $20 per rotor. Autozone will charge about $40-$50 per rotor new.

[marinos]

I also thing the problem might be the rotors I have replaced mine and the car feels great. I had cut them the first time but later i put new ones at the front and it feels great mine also was shaking and at high speeds without to apply the brakes.

[Stambo]

warped rotors

[SoDo]

warped rotors

x2

[jtmlb3k]

I had the same issue. It's exactly what everyone is saying. I took mine to get replaced but the shop ended up just shaving them (said they were off because the car sat for most of the winter in New England cold) and now they're fine. It didn't cost me more than $50 for all 4 to be shaved, plus a tire rotation.

[garin]

yea... it isn't worth resurface rotors. buy new!

[HectortheRican]

That's what I'm planning on! It'll have to wait a bit though, I'm jobless at the moment because I had to move for college

[HectortheRican]

I like to do as much as I can myself, so could someone give me a how-to on replacing rotors and pads? Thanks in advance.

[RockyMountainCel...]

I like to do as much as I can myself, so could someone give me a how-to on replacing rotors and pads? Thanks in advance.

Can't give you a how-to since I've never done it before on a Celica but I can say it should be fairly easy. I did the brakes on my 2003 Elantra GT and after wrecking 2 calipers I finally got the 3rd to work. I failed on the first caliper for over tightening the brake line, and the other one I ripped the rubber boot cause I didn't know there was such a tool as a "rear caliper tool". I assume the Celica is no different and you will require a rear caliper for the rears. Otherwise it's pretty straight forward, you have to remove a part of the caliper off the rotor to remove the rotor and place the new pads. Make sure that whatever brakes you get that you properly bed them in, this involves specific braking for about 10-20 mins depending what pads you get. I personally recommend the Hawk HPS pads if it is strictly a street car. If you do any auto-x or lapping events I recommend the Hawk HP+ pads, I had them on my Cobalt and once they are warm they are like glue, I LOVED them.

This post has been edited by RockyMountainCelica: Aug 23, 2010 - 5:07 PM

[zfjohnson07]

its easy, take off the brake caliper, and then take off the mounting bracket that holds the cailper in place, either get a hammer and knock off the rotor or get 2 screws and stick them in the holes on the rotor to get it to loosen up..

[Rusty]

do you have ABS?

[HectortheRican]

do you have ABS?

Yes, I do.

[Rusty]

bleed your system (properly with a bottle and hose) when you are romoving the calipers. If you dont you will push the fluid back up into the ABS motor and do damage.

[HectortheRican]

bleed your system (properly with a bottle and hose) when you are romoving the calipers. If you dont you will push the fluid back up into the ABS motor and do damage.

So before I remove the calipers, bleed?

[Rusty]

as you are pushing the pads out and removing the calipers. Since you dont want to force any fluid back up the system.

[Spider77]

Its good practice to bleed the system while you are changing pads anyhow. I think its a lot easier with no wheel in the way.

[DEATH]

Its good practice to bleed the system while you are changing pads anyhow. I think its a lot easier with no wheel in the way.

If you are gonna do that you might as well flush the entire system by pumping a bottle of cheapo brake fluid through it before you put the good stuff in as well