Warped Rotors already - 17k miles Mazda 3
- Thread starter buster
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I had that in 2004 on my moms 2004 Mercury Grand Marquis bought brand new with 70 miles on it from when they went to pick it up. It was either a defect or they drove it like they stole it...lol
I'm sure I won't be the first one to mention this, but supposedly the majority of "warped rotor" cases aren't actually warped rotors, just uneven friction material deposits on the rotor surface.
http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths
Regardless, if it's under warranty, let the dealer fix it
http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths
Regardless, if it's under warranty, let the dealer fix it
Try bedding in a new set of pads. Once I started doing that my pulsating rotor problems disappeared.
http://www.tirerack.com/brakes/tech/techpage.jsp?techid=85
I do 35-40 35mph to 5 mph gradual slow downs with a half mile of cool off in between. Try to avoid traffic light stops when doing this as much as possible. Then after 5 minutes of cool off driving and done. Now brake pads last 70,000 miles or more.
http://www.tirerack.com/brakes/tech/techpage.jsp?techid=85
I do 35-40 35mph to 5 mph gradual slow downs with a half mile of cool off in between. Try to avoid traffic light stops when doing this as much as possible. Then after 5 minutes of cool off driving and done. Now brake pads last 70,000 miles or more.
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Originally Posted By: EdwardC
I'm sure I won't be the first one to mention this, but supposedly the majority of "warped rotor" cases aren't actually warped rotors, just uneven friction material deposits on the rotor surface.
http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths
Regardless, if it's under warranty, let the dealer fix it
^ All of this.
I'm sure I won't be the first one to mention this, but supposedly the majority of "warped rotor" cases aren't actually warped rotors, just uneven friction material deposits on the rotor surface.
http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths
Regardless, if it's under warranty, let the dealer fix it
^ All of this.
Originally Posted By: buster
As The Critic pointed out to me, it could be from Sears not properly torquing the lug nuts after each rotation I've had done. I should have known better and checked after it was done. rrrrrrrrrrrrrrrrrr
Loosen and retorque and then run them for a while. I've had quite horrible shaking on normal stops, come back to only barely noticeable shaking on a hard stop, which was good enough for me as an unplanned hard stop doesn't happen to often out in the sticks.
As The Critic pointed out to me, it could be from Sears not properly torquing the lug nuts after each rotation I've had done. I should have known better and checked after it was done. rrrrrrrrrrrrrrrrrr
Loosen and retorque and then run them for a while. I've had quite horrible shaking on normal stops, come back to only barely noticeable shaking on a hard stop, which was good enough for me as an unplanned hard stop doesn't happen to often out in the sticks.
I highly doubt the rotors are warped. This car is too light to do such a thing under normal driving.
Well you could drive less aggressively?
I would first let the dealer deal with it.
I would first let the dealer deal with it.
Originally Posted By: Doog
Try bedding in a new set of pads. Once I started doing that my pulsating rotor problems disappeared.
http://www.tirerack.com/brakes/tech/techpage.jsp?techid=85
I do 35-40 35mph to 5 mph gradual slow downs with a half mile of cool off in between. Try to avoid traffic light stops when doing this as much as possible. Then after 5 minutes of cool off driving and done. Now brake pads last 70,000 miles or more.
Akebono for one does not suggest bedding in new brakes. Just drive moderatly for the first 400-500 miles, with no hard stops.
Try bedding in a new set of pads. Once I started doing that my pulsating rotor problems disappeared.
http://www.tirerack.com/brakes/tech/techpage.jsp?techid=85
I do 35-40 35mph to 5 mph gradual slow downs with a half mile of cool off in between. Try to avoid traffic light stops when doing this as much as possible. Then after 5 minutes of cool off driving and done. Now brake pads last 70,000 miles or more.
Akebono for one does not suggest bedding in new brakes. Just drive moderatly for the first 400-500 miles, with no hard stops.
I never rotate my tire F>B on MY car for this reason anymore. Then my wife gets HERS rotated, she complains of vibration, and then I, me myself! now must to move and reposition tires around on the lug nuts and retorque a few times then I can (usually) eliminate the issue.
Jeepers.
Hopefully its just a bad tire rotation and torqueing issue - usually is.
Jeepers.
Hopefully its just a bad tire rotation and torqueing issue - usually is.
My 1995 Ford Escort still has it's original rotors at 230K miles. And yes they are in spec, never been turned, not warped, etc.
Mazda does not consider "rotor warping" to be a warrantable repair. They consider it abuse and will not cover it. They generally only cover and brake issues on wear items under 12/12 warranty.
Originally Posted By: EdwardC
I'm sure I won't be the first one to mention this, but supposedly the majority of "warped rotor" cases aren't actually warped rotors, just uneven friction material deposits on the rotor surface.
http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths
Regardless, if it's under warranty, let the dealer fix it
Yep, "warped rotors" are a myth.
I'm sure I won't be the first one to mention this, but supposedly the majority of "warped rotor" cases aren't actually warped rotors, just uneven friction material deposits on the rotor surface.
http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths
Regardless, if it's under warranty, let the dealer fix it
Yep, "warped rotors" are a myth.
Rarely known, but bad ball joints, bad struts, bad wheel bearings and other bad suspension parts can cause warped rotors. I used to have a '94 Thunderbird way back when and this was the case until I went completely through the front end.
Originally Posted By: qdeezie
Rarely known, but bad ball joints, bad struts, bad wheel bearings and other bad suspension parts can cause warped rotors. I used to have a '94 Thunderbird way back when and this was the case until I went completely through the front end.
Struts are more likely to amplify a brake shudder, whether it's pad material or a warp. When rotors were thick they could be turned, now one pass on a brake lathe can take them undersize. You might try burnishing both sides of each rotor with 100 grit sandpaper. It would reduce the uneven pad material deposit.
Rarely known, but bad ball joints, bad struts, bad wheel bearings and other bad suspension parts can cause warped rotors. I used to have a '94 Thunderbird way back when and this was the case until I went completely through the front end.
Struts are more likely to amplify a brake shudder, whether it's pad material or a warp. When rotors were thick they could be turned, now one pass on a brake lathe can take them undersize. You might try burnishing both sides of each rotor with 100 grit sandpaper. It would reduce the uneven pad material deposit.
Originally Posted By: buster
As The Critic pointed out to me, it could be from Sears not properly torquing the lug nuts after each rotation I've had done. I should have known better and checked after it was done. rrrrrrrrrrrrrrrrrr
That has always been the culprit on my car and my parents vehicles. I've found lugs on cars at 150+ ft lbs; that will crush the rotor hat and warp the rotor.
As The Critic pointed out to me, it could be from Sears not properly torquing the lug nuts after each rotation I've had done. I should have known better and checked after it was done. rrrrrrrrrrrrrrrrrr
That has always been the culprit on my car and my parents vehicles. I've found lugs on cars at 150+ ft lbs; that will crush the rotor hat and warp the rotor.
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