Patrick Saxon Posted April 7, 2015 Report Share Posted April 7, 2015 ok i just got a new truck 2001 gmc sierra 6.0 L i took my mechman g series 270 amp alt off my 1999 sierra 5.3 L to swap on the new truck when i start the truck volts high like 15 and if i rev engine they drop and all cab lights and head lights dim. Once truck is warmed up it seems to be normal voltage and slight light dimming i have big 3 done in sky high ofc and a xs d3400 as starting battery .i have not installed my extra batts yet witch is 3 more group 31s i have not changed any thing with the electrical it has stock sterio ,speakers ,ect ive also noticed i blew my cig lighter fuse/abd port fuse like 3 times without any thing plugged in it .any help would be great Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.