My 1995 blazer 4X4 with a 4.3 liter engine blows the number 4 fuse (gauges) intermittently. sometimes it lasts hours, days or weeks!! I have replaced the alternator and traced wires under the hood and under dash. Running out of ideas. Please help!!!

My 1995 blazer 4X4 with a 4.3 liter engine blows the number 4 fuse (gauges) intermittently. sometimes it lasts hours, days or weeks!! I have replaced the alternator and traced wires under the hood and under dash. Running out of ideas. Please help!!!

Ok, start with the obvious... Disconnect any aftermarket accessories you may have, amp, remote starter, alarm, etc... One of these items could be back feeding power into that circuit... You say you've traced, but have you actually metered resistance on all those lines?