Nissan 370Z Forum - View Single Post

Read T · 01-14-2015, 12:59 AM

Welcome first time poster!

When was the last time you changed your brake fluid? sound more like a deposit problem but it might be beneficial to swap out the fluid.

In general most modern brakes won't warp, however they can build up pad deposits on them which most mechanics will (incorrectly) refer to as "warped rotors", and either way a run on the lathe will fix it. You could try re-bedding your pads and this may help get rid of deposits. Shops around here charge about $25 a side to turn rotors. I'm not sure there is a specific list to run down to figure out which it is. I wouldn't guess it's the ABS unless a light is flashing or you're really beating on the car but I'm not a mechanic.

You could try turning the front wheels by hand and see if you can feel any binding, might work?

If it was air in the lines normally the brakes would fade some like you noted (again, another reason to change the fluid, even if it isn't causing the shudder), in my experience the air prevents the brake fluid from biasing side-to side evenly so instead of shuddering the car pulls to one side under heavy braking. Pad condition/rotor condition and tires also could effect this though.

01-14-2015, 12:59 AM	#2 (permalink)
Read T A True Z Fanatic Join Date: May 2012 Location: Raleigh, NC Posts: 1,046 Drives: 11 Nissan 370z BC 6M Rep Power: 18	Welcome first time poster! When was the last time you changed your brake fluid? sound more like a deposit problem but it might be beneficial to swap out the fluid. In general most modern brakes won't warp, however they can build up pad deposits on them which most mechanics will (incorrectly) refer to as "warped rotors", and either way a run on the lathe will fix it. You could try re-bedding your pads and this may help get rid of deposits. Shops around here charge about $25 a side to turn rotors. I'm not sure there is a specific list to run down to figure out which it is. I wouldn't guess it's the ABS unless a light is flashing or you're really beating on the car but I'm not a mechanic. You could try turning the front wheels by hand and see if you can feel any binding, might work? If it was air in the lines normally the brakes would fade some like you noted (again, another reason to change the fluid, even if it isn't causing the shudder), in my experience the air prevents the brake fluid from biasing side-to side evenly so instead of shuddering the car pulls to one side under heavy braking. Pad condition/rotor condition and tires also could effect this though. __________________ 2011 Nissan 370z Black Cherry Sport Pkg - Daily Driver, , 1960 Morgan +4 fun car, 1986 BMW 325ES, 1998 M3 and 1996 Spec Miata - Race Cars SUPPORT TEAM WINSOME RACING - WRL, CHUMP, LEMONS Last edited by Read T; 01-14-2015 at 01:06 AM.