Outdoor Lighting Help Needed...

[5series]

Hey everyone, I needed some advice on some outdoor lights that I am wiring up. Thanks in advance for the help!

So I recently bought new outdoor porch lights to replace my old ones (The old ones both worked). I wired the left side up first- black to black, white to white and connected the ground and put the bulb in and it worked fine. I move on the the right side and hook it up the same way and put the bulb in. The right side now lights up and I am getting 120v while the left side does not light up and gives me no voltage. So i reset the circuit breaker, check for any tripped GFCIs and find none, double check all my connections but it seems as the black wire coming in to the porch light is not live on the left side. Both of these lights are turned on by one switch in the garage.
Could it be a bad switch?

Thanks again and any advice is appreciated!

 

[Shiftless]

Since both lights used to work and one now doesn't, you can't have a bad switch. I would suspect that something you did inside that box resulted in a loose wire or broken connection of some kind. Is there more than one black and one white (with another ground wire, either green or bare) inside that dead box? That can lead to confusion.
Did you test the voltage across the black and white with a reliable meter? You got zero?
Something is wrong and a loose connection is dangerous.
Do you have experience troubleshooting electrical faults?
You might be over your head and requiring a pro to help.

 

[greenjeepers]

My guess would be the boxes are daisy chained and the black and or white wires in the first box did not get reconnected for the second box when you hooked up the first light.

 

[Git]

When I work on something and then it doesn't work usually it is something that I did

I would go back and check any connection you 'touched'

Recently I was troubleshooting an electrical problem where there were 3 or 4 neutral wires (white) wire nutted together in the box. When I tool a closer look I discovered one of the wires had actually broken right at the point where the insulation was stripped off. Since the wires were twisted together in the wire nut, it looked like everything was fine.