Grounds are even sneakier than losses on the hot side. Since most vehicles rely on body and/or frame metal to provide most or all of the ground circuit, decades of rust, loosening of rivets, salt, and other contaminants can sneak into places on the ground side that makes it difficult if not impossible to pinpoint where the voltage loss is happening. It's hard to have too many good grounds- - - -preferably good-sized wires with clean, tight, bare metal connections between the engine, bed, body, and frame in several places. Rubber engine and body mounts DO NOT conduct electricity!
Jerry
Last edited by Hotrod Lincoln; 02/12/2018 9:47 PM.
