I have a friend with an 06 Ranger 4.0 4WD, don't know the milage. He is having problems with it cutting off while he is driving. It has happened about 6 or 8 times over the last 6 months but is now happening more frequently. Everytime it cuts off it will not restart unless he resets the Inertia switch and then it fires right up. Will a new inertia switch solve the problem and does anyone know of a TSB regarding this issue?