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Mar 25, 2016 · Bluing doesn't always mean the rotor is warped, so to your point, it probably doesn't mean the rotor always needs to be replaced. I would look at it as "a visual reason to consider replacing or fully inspecting the brakes". If you have bluing, something went wrong or the car is being driven beyond its abilities. –
- Symptoms of Bad Brake Rotors
- Should I Resurface Or Replace My Brake Rotors?
- Brake Rotors Resurface Cost
The most common symptoms of bad or worn brake rotors are squealing noises when braking or worse brake performance than usual. If your car is shaking and the brake pedal is pulsating while braking, it is also a strong sign your brake rotors are bad. The brake rotors in a car use the concept of friction to slow the car down. Friction can very easily ...
20 years ago, it was very common to resurface brake rotors instead of replacing them. This was because the brake rotors were quite expensive compared to today, and probably because labor was a little bit cheaper, as well. However, some people want to resurface their brake rotors nowadays, too. If you ask me, I never recommend anyone to resurface th...
The average brake rotor resurface cost is between $10 and $30 per rotor. Some workshops offer free resurfacing for people who order brake pad replacement, though the brake pads are not too bad. If you have to pay for it, I recommend replacing the brake rotors instead. To find more exact information on brake rotor replacement cost, check out my guid...
- Warped brake rotors. This is the number-one braking myth. Perhaps it has become so ubiquitous because, at first, it appears to make sense. If you feel steering wheel vibrations or pedal pulsations when braking, then the disc’s surface must be uneven because it is “warped” from excessive temperatures, right?
- Bigger brakes will help you stop quicker. Brake rotors with a larger radius will increase the lever arm of the braking force over the center of the hub and, therefore, the braking torque applied to the wheel.
- Drilled or slotted brake rotors are better. We’ve already seen that fitting bigger rotors does not necessarily make sense for a normal street-driven vehicle.
- Disc brakes stop faster than drum brakes. Fewer and fewer cars nowadays use drum brakes and those that do only use them on the rear wheels, where the braking forces are lower.
Jan 4, 2016 · 1. Noisy Brakes. One of the first symptoms commonly associated with bad brake rotors is noise. If the rotors are warped (meaning not perfectly flat) or severely worn, they may produce squealing or squeaking sounds. Usually, warped rotors will produce a squeak, while severely worn rotors will produce a scraping sound.
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- Look Out For Blue Rotors. Your rotors should never be blue, period! To check the color of your rotors, you will have to remove your tire completely unless you have a car with large wheels with limited spokes where the rotor is visible.
- Look Out For Grooves Or Scoring On The Rotors. Another tale-tale sign of damage to your rotors are grooves and scoring on the discs. Again to inspect, you will need to take your tire off.
- Listen For a High Pitched Screeching or Squeaking Sound. Unless you drive a Tesla or some other non-gas powered car, you should pretty much only hear the sound of your engine and tires while driving.
- The Car Takes Too Long to Break. One of the signs something isn’t working is when it stops working. Now you never want to let your rotors get to a point where they just flat out stop braking because then you are in a world of trouble.
Jan 25, 2024 · Pulsing signals unevenly worn rotors. If your rotor isn’t perfectly flat, it doesn’t properly align with the surface of your brake pads, causing a wobbly or shuddering sensation. Uneven wear is usually caused by overheated rotors or worn out brake pads. [6]
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7. Rotors Have Cracks. Another symptom that your brake rotors are bad is cracks on the brake rotor surface. Cracks can develop in brake rotors after they have been heated up to extreme temperatures causing the steel brake rotor to form cracks on the surface of the brake rotor.
