1993 F-250 plow truck
Join Date: Dec 2009
Location: Snow Belt, Geauga County Ohio
2008 brake pedal goes "bump"
My recently purchased 2008 gas Escape just turned 83K and is providing comfortable, dependable transportation while my Power Stroke sits out the crazy high Diesel prices, then it will become daughter #2's ride when she gets her permit. My only concern with it now is that when rolling to a stop, the brake pedal will "bump" down what feels like about a half inch towards the floor. When this happens, it does not seem to affect the stop. It has disc on front, drums on rear. It does not do this every time I stop. Warm or cold doesn't matter. I have not noticed it ever under hard braking. There is no pulling right or left in the steering. I have had it happen with the radio and A/C off and there is no sound or sensation familiar to ABS being activated. Have not seen any codes or indications on the dash.
Should I be thinking about a new master cylinder? It feels like the primary or secondary piston is hanging up occasionally and when enough pressure gets behind it and it breaks loose... for lack of a better description :<)
Any direction you can provide is greatly appreciated!