can anyone help? when my air condition is on and I'm stoped with my foot on the brake, the pedal falls down about half inch . it also feels like i have to press harder on the brake to stop. the fluid has been changed and I have new brakes????? Sean11l

 

thats quite odd. are you sure your not just hearing *click*

when your break light comes on?

im baffled

 

did they bleed the brake lines. sounds like air in the lines.

 

if its when the ac comes on its cause of the vaccum pressure. when the engine gets a load on it it looses vaccume. a loss of vaccume means less brake pressure. since the brakes get the pressure from the intake manifold vaccume. if its too bad take it back to the people u got to do the brakes. if not, then its nothing to worry about.