Hey guy's and gal's, new to the site. Have a 2003 GMC Yukon XL, noticed the headlights pulsing shortly after replacing bad alternator. Wasn't really a problem until driving the other day truck died while driving,with over half a tank of gas, gauge reads empty and wont turn over. replaced 15 amp "A" fuse and truck started with reduced power. several minutes and restarts later truck running fine,went to test drive and fuse blew again.Might be two different issues, or one big mess comin' my way. Anyone else have this issue?