I'm having a very identicle issue on my 05 f250 5.4 any ideas? and how do I bleed the RABS, i did't know that you could, also, if I'm going kinda fast, and then slam my brakes (VA drivers suck) then sometimes my front right side will lock up, until I push on the brakes kinda hard again and then that side will release, almost cause me to drift off the road the other day doing about 60 mph... but I also have stiff pedal when engine is off, and then when engine is on, pedal slowly goes down until just a few inches from the floor... really need to get this fixed..