Faulty or defective camshaft/crankshaft sensors shutting down or stalling the vehicle while in operation and motion, without warning. driving, up to 70mph, in heavy traffic on a busy highway, vehicle engine stalls and results in loss of power steering, power brakes and forward momentum. when this happens, the driver is thrust into a very dangerous (and possibly deadly) position of trying to manually (w/o power) steer and/or brake the vehicle at high rates of speed in fast and dense traffic.