Brake Light Flashes

[87Turbo-TWE4]

Brake light flashes quick when I hit the brake sometimes. What does this mean on a powermaster? Last car had hydroboost.

 

[turbojd]

could be accumulator or brake switch.

 

[BuickMike231]

Most likely the accumulator ball needs to be replaced. It seems to be very common once the brake light starts flashing when the brake pedal is pushed that is a sign of the accumulator failing. The brake light starts flashing more as the ball gets worse, at least that is what happened on my car. Changed the ball and haven't seen the light since.