2007~2015 Brake Pedal

[beefski]

Have a 2013 Grand Touring with 90K miles. Brake pedal all of a sudden is rock hard. Takes all my force to get car to stop. Master cylinder or Booster?

Is this a common problem? Is a Mazda part best or will a good aftermarket be ok. Of course this happens right before vacation.



Thanks

 

[TheMAN]

probably brake booster... another person recently posted about this: 2016~2023 - CX-9 Brake pedal hissing noise