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Message: <blockquote data-quote="ward" data-source="post: 140475" data-attributes="member: 25583">Doing a voltage drop test for many people is a new thought, however it has been done for many years over 60 years from some of the manuals I have read,  The way I always do it for a starter issue is I that connect the the red lead at the positive termanal of the battery and the black lead at the other end of the battery lead of at the positive connection on the starter, now the meter is hooked up parallel to the batery cable, the meter should read zero volts with the key off, now crank the unit over and read the meter while cranking and you will see a voltage show up on the meter, if I remember correct it should be less then or about .5 volt. This can be done in any circuit when trouble shooting voltage issues. I have I have seen starters that have a bad ground show up in the same type of test, postive lead  from the meter on the starters body and black lead on the grounding wire at the engine block or ground location on the block then moved from the ground on the engine to the ground terminal of the battery, some times I have found the issue in doing this by accidently touching a connection and finding it to be warm or hot when checking a cold engine.</blockquote>