wrote in message
ups.com...
Problem: I am getting shocks on the aluminum siding of my garage.

Background:
I have a single 12/2 romex wire running from from my house feeding my
garage. In the garage, it goes into a junction box, where the lights
for the garage are connected. The feed into the junction box is only 2
wires, there is no ground. I consulted an electrician (relative) and
he suggested to run a copper wire (6 wire?) from the junction box to a
grounding rod, and sink the rod into the ground. I did this, and am
still getting shocks. I checked where the feed enters the garage,
thinking maybe the wire is nicked, but it is not. Any other
suggestions, before I replace the feed wire (underground)?

Does your relative have a vested interest in your death? (life insurance for
example)
Consider discussing electrical issues with some one else in the future.
What is described is a ground loop which is expressly prohibited by the NEC.
I will not labor the point of "supplemental grounding" because you do not
have a ground conductor.

Some one else suggested that the sheath of the romex may have been
pentertated buy a fastener for the siding. This is a good clue and may end
up leading you to the exact cause. A VOM or continuity tester on a dead
circuit may help you discover the area of the problem. Your going to have to
open secitons of the wiring until you find the problem.

Good luck finding the problem.