Powermaster

[Wht87T]

The pedal almost goes to the floor before I get any braking action. If I put the pedal to the floor the brake light comes on. I did the test with the ignition on. The brake light dosent turn off, but the motor does cycle and turn off. Any assumptions???

 

[gofstbuick]

Check to see if the wheel cylinders are leaking, or a ruptured diaphram on your disc brake caliper. Is the fluid excessively low on one of the reservoirs? If all is well, I would replace the accumulator first, then the pressure switch. Just my 0.02. I don't know much about powermaster diagnosis, but this happened to me and that is what I did and the have not had problems since. I sure there is a diagnostic trouble tree to follow in a manual.

 

[MELOVEGN]

i just had a similar problem try the switch/sensor behind the brake fluid resevoir it may me leaking see if it is wet inside they are 225 from the dealer