# Shuddering Brakes - Only when HOT; and fuel cut?

**URL:** <https://community.cartalk.com/t/shuddering-brakes-only-when-hot-and-fuel-cut/56420>\
**Category:** Maintenance/Repairs\
**Tags:** mazdaspeed3, mazda\
**Created:** [October 16, 2010, 12:11am UTC](https://community.cartalk.com/t/shuddering-brakes-only-when-hot-and-fuel-cut/56420 "2010-10-16T00:11:52Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![victoryay](https://avatars.discourse-cdn.com/v4/letter/v/34f0e0/32.png) [@victoryay](https://community.cartalk.com/u/victoryay)\
**Post date:** [October 16, 2010, 12:11am UTC](https://community.cartalk.com/t/shuddering-brakes-only-when-hot-and-fuel-cut/56420/1 "2010-10-16T00:11:52Z")

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Hi,  
  
  
  
 I went to the track a few weeks ago and noticed a couple of quirks with my car.  
  
  
  
 First, the brakes started shuddering after a couple of sessions. Usually when someone says their brakes shudder, they say that your rotors are warped. But I’ve never encountered brakes that only shudder when hot. After I let my car cool off, the shuddering is gone. I guess that could mean my rotor is warping as it gets hot, but I’m not sure. If so, how do I fix this? I’d rather not spend the money to get new rotors, but is this the only way?  
  
  
  
 Also, I noticed that my car seemed to have some kind of fuel cut for a split second while accelerating. This didn’t happen very consistently, and I’m still not sure what the conditions are. At first I thought it was when I was at wide open throttle, but later when I stopped flooring it, it would still happen. I think it happened less when I was only on part throttle though. I have feeling it happened more on uphills as well.  
  
  
  
 Please help!  
  
  
  
 Thanks,  
  
 Victor