Re: Reversed Polarity

Posted by Loyd Smith On 2009/6/1 23:10:48

I am not positive (no pun intended) as to the actual reasoning of the manufacturers but experience tells me that Positive ground electrical systems work well when everything is new and all components ground as designed. As the vehicles get older, parts rust/corrode/get loose, etc. components tend to loose their grounds and to become either inoperable or intermittent, if you will. The negative ground system with its input and ground wiring tends, I think, to be more dependable and easier in some cases to diagnose over the long run. Today, most mechanics have never seen a Positive ground system and some tend to do strange things to them in their ignorance.