hey this is my first post long time follower just read the threads. here is my problem when the gas pedal is pressed the headlights/dash lights flicker. the fuse, batteries and alternator checked all is good shape. also the rear cab light dose not light up. wondering if i have a short somewhere, are all these tied together. can someone share some knowledge. thanks

 

i would check your grounds and your distribution box see if you power wires are loose check the battery cables make sure there tight what is your voltage when this is happening

 

my voltage was reading normal when this would happen. i will have my dad check the grounds and battery since i am in the mountians of another country at the time. trying to get the little stuff fixed before i add more power. thanks