Brake Pedal Drops

[sport]

Hi all, I posted this problem recently but I don't think I uploaded properly so if you have seen my previous post I apologise.

I have an BF F6 Tornado with the 4 piston Brembos and whenever I apply firm to hard brake pressure, just as the car stops, the brake pedal drops under foot very slightly and I can hear a very faint click. I is not like an ABS problem and it happens on dry roads whereas ABS kickback normally only happens in the wet or under "extreme" dry braking where there is wheel lock up. I have taken it to my dealer and althought they can feel the problem, they are unable to say what it is.

I have gone over every relavent nut and bolt in the front and rear of the car and there is no change. The car has had after market disc pads from new but I have only noticed this problem since about 12000kms and I took the car back to the place that supplied the disc pads and the checked it all over and bled the brakes ?? and still no change. Any ideas would be a great help. Sport

[12FEAR]

Hey there mate I have a bf xr6t ute and I have the exact same problem, since the first day I drove it!! got me beat too!!! I also get click ,that I can feel through the steering wheel, when I turn the wheels full lock. its a similar sound and feel?? but unlike you I have stock brakes???

[ZAP]

I think it is the electronic brake force distribution or EBD. This is like a proportioning valve that ajusts the pressure front and rear to ensure the maximum braking is achieved.

Modern braking systems are not like the old style. There are more thumps and clunks as there is a pump for the stability control, the EBD and ABS.

[sport]

  ZAP_F6 said:

I think it is the electronic brake force distribution or EBD. This is like a proportioning valve that ajusts the pressure front and rear to ensure the maximum braking is achieved.

Modern braking systems are not like the old style. There are more thumps and clunks as there is a pump for the stability control, the EBD and ABS.

My car is a Tornado ute and I am sure they don't have EBD. I think that is only on the sedans and even then I think I read that the BF series I Typhoon (sedan equivalent to my ute) didn't have it due to cost restraints and it was initially only fitted to the standard BF and Xr's.

Also, my pedal drop is only when I come to rest under firm brakes and is not throught the steering. The shudder in the steering is a common problem that is easily fixed by the dealer by re positioning / tensioning the rack. Sport

[ZAP]

I am sure all the BA/BF's have EBD, it is just the FPV's that miss out on stability control or DSC.