Review on Standard Motor Products US294 Ignition by Jay Williams

My Jeep Cherokee 02 has had intermittent starting problems but hasn't had any starting problems in the last 3 or 4 years. I've tried replacing the engine control unit, idle valve, relay, checked the wiring, vacuum tube, etc., but to no avail. I finally read of a case where one person solved the problem by replacing the ignition switch. Finally it worked. It's been a few months now and the Jeep starts every time.