Q: What is the truth about brake rotors/brake jobs?

asked by on

I'm hearing a lot of what sounds like baloney about the REQUIREMENT of replacing rotors every time the pads are changed. Can you give me some like the truth on this subject? Everyone I have spoken too gives the appearance of lying through their collective teeth.

My car has 55000 miles.
My car has an automatic transmission.

Hello. The rotors on most cars have a minimum thickness that they can be before they should be replaced. The minimum thickness is stamped into the rotor. The rotor can then be resurfaced until it gets too thin and should be replaced. Other reasons the rotor should be replaced are purple heat marks on the rotor and stress cracks. A rotor surface should be at least scuffed up if it is not being replaced or it is not warped. This non-directional scuffing will allow the new pads to seat in properly to the old rotor. The reason most mechanics recommend rotors with new pads is most vehicles will have too thin of rotors, warped rotors, heat or stress cracked rotors. The mechanic is liable to do the brake job correctly to prevent unsafe conditions. If you would like to have this done, a qualified mechanic can perform a brake pads and rotors repair (if necessary) at your home or office.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. What is the truth about brake rotors/brake jobs?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Alternator bracket broken.

A broken alternator bracket may cause some belt slip which will amount to charging system problems so the technician is correct on this part. The price to replace the parts will vary among service facilities as many facilities will have...

Q: Faulty water pump causing car to overheat

If coolant is not circulating, even with the thermostat removed, the problem may be with the water pump. It could also be a clogged radiator, but is not likely. If the coolant is circulating, the problem could be with the...

Q: Changed brake pads and no obvious fluid leaks, brake pedal goes to floor with no resistance.

When you replace your brake pads you had to push back the caliper pistons to get the pads out and the new ones in. After the calipers are put back on you will have to pump the brake pedal several...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...