Warped car rotors?

[lopxtc]

You would be amazed at the number of people that I have had this arguement with ... granted when I just ran steelies on my car I pretty did hand tight, but now with nice wheels on my car (LOL) I use a torque wrench everytime.

Aaron

If your answer is "With an impact wrench" or "One at a time as tight as they'll go", it's the wrong answer.

Incrementally cross-tighten and then cross-torque the nuts.

[Lohman446]

Quick braking isn't the only thing that will warp a rotor. How do you torque your wheel nuts?

If your answer is "With an impact wrench" or "One at a time as tight as they'll go", it's the wrong answer.

Incrementally cross-tighten and then cross-torque the nuts.

I have this conversation daily
"Your lug nuts are torqued to specs. Please recheck them in 50 and 100 miles"
"I don't have to check them whenever someone else works on them"
"You should.. when torqued to specifications it is possible that they work loose are did not seat fully, if you want to bring it by I will recheck them for you"
"I never had to before"
"Whatever..."

[Slimm Jimm]

Now the reponses I got said these cars have a problem with the rotors warping. I've never heard of such a thing, has anyone else?

Grand Ams from about 2000 on have had that problem it seems. It's gonna happen with those cars no matter what.

[rkjunior303]

Grand Ams from about 2000 on have had that problem it seems. It's gonna happen with those cars no matter what.

It's more a GM thing and the OEM rotors they used... Grand Prix, Grand Am, Alero, etc..

[lopxtc]

Actually I seem to be seeing this allot lately. Almost seems like the OE rotors are being designed to almost be worn out and needing to be replaced at the same time as the pads. I have helped a number of people in my family with changed rotors and pads and it seems that the OE rotors come close to the worn down point at around the same time the first or second set of pads is being changed out.

Aaron

[thecavemankevin]

i test drove eagles car a few days ago and somehting definatly seems wrong with the ABS. at any speed and with any amount of pressure (even just the slightest little touch) you can feel the ABS kicking in and the pedal bouncing back on your foot worse than an Zmans RT running right off the scuba (man that was a long analogy).

what did the other shop tell you eric?

[Eagle]

The other shop wanted $400 to replace the rotors and pads, or $300 for just the rotors. They said the rotors are past the point of no return. Well, I just replaced the pads a couple days ago, so I ain't doing that again. I'm about to attempt the rotors myself, save myself almost $200. I just hope this does the trick.

[Big'n slo]

I have this conversation daily
"Your lug nuts are torqued to specs. Please recheck them in 50 and 100 miles"
"I don't have to check them whenever someone else works on them"
"You should.. when torqued to specifications it is possible that they work loose are did not seat fully, if you want to bring it by I will recheck them for you"
"I never had to before"
"Whatever..."

Heh,
I lost a AL. rear wheel once...

[mag-owner]

The other shop wanted $400 to replace the rotors and pads, or $300 for just the rotors. They said the rotors are past the point of no return. Well, I just replaced the pads a couple days ago, so I ain't doing that again. I'm about to attempt the rotors myself, save myself almost $200. I just hope this does the trick.

replacing the rotors are super easy, with older vehicles you might have to hammer the old ones loose. good luck!

[Eagle]

Well, it turned out that it was warped rotors. It just disgusts me that it happened after just 21000 miles, and the dealer wouldn't warrent it, and every place I took it wanted more than double what it cost me to do it myself.

[frop]

The other shop wanted $400 to replace the rotors and pads, or $300 for just the rotors. They said the rotors are past the point of no return. Well, I just replaced the pads a couple days ago, so I ain't doing that again. I'm about to attempt the rotors myself, save myself almost $200. I just hope this does the trick.

Did they mic the rotors? Did they do anything at all other than look at them? If not, they are trying to screw you. Also, used car dealer or GM?

Caveman, concerning your ABS comment, what shook, the pedal or the whole car?

[Lohman446]

Did they mic the rotors? Did they do anything at all other than look at them? If not, they are trying to screw you. Also, used car dealer or GM?

Caveman, concerning your ABS comment, what shook, the pedal or the whole car?

That is a ridiculous statement. If the front rotors are warped, turning them down (even if machineable) will generally result in them rewarping rather quickly. It does not take a mic to tell someone that, and a trained technician can generally glance at rotors and see if they are grooved or not. There is very little machineable distance on current GM rotors, light scarring is about all that you can get out. Just because someone does not mic a rotor does not mean they are trying to screw you... honest. I mic some rotors, the questionable ones, but for a lot of them its a waste of time.

[thecavemankevin]

Caveman, concerning your ABS comment, what shook, the pedal or the whole car?

pedal

[Eagle]

pedal

At low speeds it was just the pedal. Coming down off of higher speeds the whole damn car vibrated.

[teufelhunden]

every place I took it wanted more than double what it cost me to do it myself.

..

Do you expect someone to work for free? Parts + labor