Im looking for some input

I just changed the rims and tires on my car, and less than a day of driving the rotors appear to be warped. I changed back to the factory rims just to check and the factory rims still make the vibration. In my mind this points to the brakes being the cause of vibration.

It vibrates under moderate braking but not light and not really heavy braking only noticeable at higher speeds between 50 and 70+. The Tires I put on are 215/45zr17s bfgoodrich g-force t/a KDW NT or 2 whatever. The point is they are alot more sticky, ive done a few fast stops, and a lady cut me off then stoped short in trafic but I just thought it was odd that I put on the new rims and tires then all the sudden vibration in the front. Im just wondering if I put on the new rotors is it just going to warp in a short period of time anyhow?

 

Did you properly torque your wheels on? Are they factory Rotors? What CAr?

 

If you over torque your wheels it will cause your rotors to warp..

 

torqued to 100ftlbs
factory rotors and pads
06 cobalt ls

 

I warped my rotors, had the same feel. I felt a slight vibration during regular breaking.

 

i have the same proble i hope it is the rotor i will be putting new ones in tomorrow along with new pads

 

let me know how that works out for you. I wonder if this is covered under warranty im still in my warranty period.

 

rotors are replaced under bumper to bumper.

Chevrolet has the shittiest rotors out. Its not only with the cobalt but with other Chevy models as well. I was at the dealership talking about it when 4 others chimed in about how crappy they were.

Mine were warping every oil change so i just bought some drilled and slotted ones off ebay. Hasnt warped for 30,000 miles.

 

the cobalts have shitty shitty rotors, i warped mine when i first got the car. since they were replaced i have just been easy on the brakes and so far so good for 2+ years.

 

These rotors SUCK. The warp with very little effort. I have only had the car one year, and i have had them machined once, and they are already ready to be replaced.

 

depends. sometimes they fix it, sometimes they call it wear and tear. my suggestion is to just get aftermarket rotors AND pads and forget about them warping.

just keep in mind, if you put new rotors, you HAVE to get new pads as well. and if you get new pads, you should have your rotors re-surfaced. NEVER put new rotors with old pads.

 

[QUOTE=rrutter81;2793732]rotors are replaced under bumper to bumper.QUOTE]

Really? i thought that would be a wear & tear item...

 

[QUOTE=ProjectBolt08;2795991]it is and it isn't.... mine warped at 6k miles, and they reground them under warranty, but don't expect that if you have 20k on it.

 

Sounds like they are beginning to warp. They will get worse over time and depending on how you treat them they will warp again. Hard driving with heavy braking warps rotors.


Any and all brake work is not covered under the factory warranty. They are wear and tear items that depending on mileage a manager can make a judgement call and cover them. Same goes for clutches by the way.

 

The stockers suck no matter how you drive. If your still under warranty it's covered for them to reface them. But I would advise you to get some after market rotors and pads to save the aggravation and bearings.

 

Driving style (hard braking) and increased rolling mass (larger/heavier wheels and tires) are contributors to warping rotors. If you must hammer the brakes a lot, get into the habit of stopping short and creeping forward. Laying into the brake pedal and coming to a stop with the pedal still down and holding you still spot warps the rotors. By sloooowwwlly moving forward after braking to a stop (ie, for a stop light) you better distribute the heat over the rotor instead of with pressure at one place. Just an FYI from experience. YMMV.

 

good advice

 

[QUOTE=joeworkstoohard;2796006]dude i know people who get the performance rotors because of how shitty they are under warranty.

 

[QUOTE=rrutter81;2797722]yeah, i've seen that too. in my case, that didn't work out, but honestly, i DID get 53k out of my stock brakes.

 

i only got 14k miles out of mine they are not warped that bad but the rotors have deep groves in them and the rotors are worn down alot