AS WITH ALL MY VIDEOS I TRY TO GIVE THE MOST INFORMATION IN THE LEAST AMOUNT OF TIME AS POSSIBLE SO I DON'T WASTE YOUR TIME. IN THIS VIDEO I GO OVER HOW I DIAGNOSED A BAD SMART ALTERNATOR ON A 2011 MERCURY GRAND MARQUIS WITHOUT A PICOSCOPE. I USED A BASIC MULTIMETER TO DIAGNOSE THE PROBLEM THIS METHOD IS NOT A 100% AND THE ONLY WAY TO BE A 100% IS WITH A PICOSCOPE BUT YOU CAN NARROW DOWN THE POSSIBILITYS WITH A MULTIMETER. THE FORD SMART ALTERNATORS COME ON A WIDE VARIETY OF FORD, MERCURY, AND LINCOLN VEHICLES AFTER THE YEAR 1999 AND THIS VIDEO WILL HELP YOU UNDERSTAND AND DIAGNOSE A SMART ALTERNATOR ON ANY OF THESE VEHICLES. I ALSO SHOW HOW TO REPLACE ONE OF THESE ALTERNATORS ON A 2011 GRAND MARQUIS WITH A 4.6L ENGINE WHICH IS USED ON SEVERAL DIFFERENT MODELS OF FORD VEHICLES.